it Pulse signal output circuit and shift register By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT To provide a pulse signal output circuit and a shift register which have lower power consumption, are not easily changed over time, and have a longer lifetime. A pulse signal output circuit includes a first input signal generation circuit; a second input signal generation circuit; an output circuit which includes a first transistor and a second transistor and outputs a pulse signal in response to a signal output from the first and second input signal generation circuits; a monitor circuit which obtains the threshold voltages of the first and second transistors; and a power supply output circuit which generates a power supply potential raised by a potential higher than or equal to a potential which is equal to or substantially equal to the threshold voltage and supplies the power supply potential to the first and second input signal generation circuits. A shift register includes the pulse signal output circuit. Full Article
it Shift register circuit, display panel, and electronic apparatus By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT Disclosed herein is a shift register circuit that is formed on an insulating substrate with thin film transistors having channels of the same conductivity type and includes shift stages, each of the shift stages including: a first thin film transistor; a second thin film transistor; a 3(1)-th thin film transistor; a 3(2)-th thin film transistor; a 4(1)-th thin film transistor; a 4(2)-th thin film transistor; a fifth thin film transistor; and a sixth thin film transistor. Full Article
it Active level shift driver circuit and liquid crystal display apparatus including the same By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT An active level shift (ALS) driver circuit and a liquid crystal display apparatus including the ALS driver circuit are disclosed. The ALS driver circuit includes an input unit configured to apply a first polarity voltage to a first node and to apply a second polarity voltage to a second node, a level compensation unit configured to adjust the voltages of the first node and the second node, and an output unit configured to alternately output a first power voltage and a second power voltage according to the adjusted voltages of the first and second nodes. Full Article
it Circuits and methods for using a flying-adder synthesizer as a fractional frequency divider By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT An open loop clock divider circuit includes (a) a first divider configured to receive an incoming clock signal and output a first divided clock signal, (b) a flying-adder synthesizer configured to fractionally divide the first divided clock signal and output a fractionally divided clock signal, and (c) a second divider configured to receive the fractionally divided clock signal and output a second divided clock signal. The open loop clock divider circuit advantageously provides a fractional divider in which there is no feedback loop between the source frequency (fs) and the destination frequency (fd). Methods of generating a divided clock signal involving the open loop clock divider circuit are also disclosed. Full Article
it Digital fractional frequency divider By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A digital fractional frequency divider for fractionally dividing a digital frequency signal can include a plurality of clock division counter modules, a plurality of sampling modules, and a summing module. The plurality of clock division counter modules can each receive an input clock signal that is phase-shifted from a remaining plurality of input clock signals. Each clock division counter module can generate a long periodic pulse from the received input clock signal. Each sampling module can couple to an output of one of the plurality of clock division counter modules and can generate a short periodic pulse from the long periodic pulse. The summing module can sum the plurality of short periodic pulses to generate a fractional frequency clock signal. Full Article
it Flip-flop, shift register, display drive circuit, display apparatus, and display panel By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A flip-flop includes: a first, second, third, and fourth transistors; input terminals; and first and second output terminals, the first and second transistors constituting a first CMOS circuit such that gate terminals are connected and drain terminals are connected, the third and fourth transistors constituting a second CMOS circuit such that gate terminals are connected and drain terminals are connected, the first output terminal connected to a gate side of the first CMOS circuit and a drain side of the second CMOS circuit, the second output terminal connected to a gate side of the second CMOS circuit and a drain side of the first CMOS circuit, at least one input transistor included in the group of the first through fourth transistors, a source terminal of the input transistor being connected to one of the input terminals. This can provide a further compact flip-flop. Full Article
it Thin film transistor threshold voltage offset compensation circuit, GOA circuit, and display By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT An output thin film transistor threshold voltage offset compensation circuit, a GOA circuit, and a display. The circuit includes: a first capacitor, comprising a first electrode and a second electrode, the first electrode being connected to the gate of an output thin film transistor and receiving a charge signal, the second electrode being connected to the drain of the output thin film transistor, the first capacitor being used for, under the action of the charge signal, making the first electrode and the second electrode have a same voltage, so that a voltage difference between the drain and the source of the output thin film transistor is equal to a threshold voltage thereof; a first switch unit, connected to the drain and the source of the output thin film transistor, and opening under the action of a first clock signal, so that a voltage difference between the gate and the source of the output thin film transistor is equal to the threshold voltage thereof. Full Article
it Methods and architectures for extended range arbitrary ratio dividers By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT One of the most important RF building blocks today is the frequency synthesizer, or more particularly the programmable frequency divider (divider). Such dividers preferably would support unlimited range with continuous division without incorrect divisions or loss of PLL lock. The inventors present multi-modulus dividers (MMDs) providing extended division range against the prior art and without incorrect divisions as the division ratio is switched back and forth across the boundary between two different ranges. Accordingly, the inventors present MMD frequency dividers without the drawbacks within the prior art. Full Article
it Liquid crystal display device including TFT compensation circuit By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT The present invention relates to a liquid crystal display (LCD) device. More particularly, the present invention relates to an LCD device including a thin film transistor (TFT) compensation circuit in an LCD device which implements a driving circuit by using an oxide TFT, the LCD device capable of compensating for degraded characteristics of a TFT due to threshold voltage shift. As the compensation circuit including a dummy TFT is formed on a non-active area of the LC panel, the degree of threshold voltage shift of the DT due to a DC voltage can be sensed. Based on the sensed result, a threshold voltage of a second TFT can be compensated. This can reduce lowering of a device characteristic. Full Article
it Stage circuit and emission control driver using the same By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A stage circuit including an output unit for supplying first or second power source to an output terminal is disclosed. The stage circuit may comprise a bidirectional driver for respectively supplying signals supplied to first and second input terminals, a first driver, and a second driver. The second driver controls the output unit to output the second power source to the output terminal without any voltage loss, corresponding to a second clock signal. Full Article
it Shift register unit, shift register circuit, array substrate and display device By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A shift register unit comprises: a first transistor, a pulling-up close unit, a pulling-up start unit, a first pulling-up unit, a second pulling-up unit, a trigger unit, and an output unit. A shift register circuit, an array substrate and a display device are also provided. The shift register unit, the shift register circuit, the array substrate and the display device can reduce drift of a gate threshold voltage of a gate line driving transistor and improve operation stability of devices. Full Article
it Display panel with improved gate driver By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT The present invention divides a wire supplying a scan start signal to a gate driver into two wires, so as to avoid overlapping a clock signal line. In this way the clock signal is not delayed by interference, and a gate driving margin may continue uninterrupted, thereby uniformly outputting a gate-on voltage. In particular, if the clock signal line is connected to all stages in the gate driver and the clock signal line overlaps the scan start signal line, unsightly horizontal bands appear on the image and the parallel gate lines generate a very large parasitic capacitance. In contrast, the gate drivers in the present disclosure comprise clock signal lines which do not overlap the scan start signal lines. As benefits, interference resulting in horizontal banding is minimized and the power consumption may be reduced by about 10%. Full Article
it Driver circuit, display device, and electronic device By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT To suppress malfunctions in a shift register circuit. A shift register having a plurality of flip-flop circuits is provided. The flip-flop circuit includes a transistor 11, a transistor 12, a transistor 13, a transistor 14, and a transistor 15. When the transistor 13 or the transistor 14 is turned on in a non-selection period, the potential of a node A is set, so that the node A is prevented from entering into a floating state. Full Article
it Head trailer with saddle actuator By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST A trailer for transporting an agricultural harvesting head includes a pair of saddles for supporting the head. The saddles are adjustably mounted on the trailer frame and are simultaneously moved together by an actuator operated by a remote control. The saddles are connected by telescoping rod sections so that the spacing between the saddles is adjustable. Full Article
it System and method for restraining a vehicle with a collision release mechanism By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST A vehicle restraint system includes a strap assembly configured to be positioned on a portion of a tire of a vehicle to secure the vehicle to a deck of a transport. The strap assembly is also configured to be coupled to the deck of the transport on a first side of the tire of the vehicle. The system also includes a mandrel assembly operable to be coupled to the strap assembly on a second side of the tire of the vehicle, opposite the first side. The system further includes a winch assembly configured to be coupled to the deck of the transport and the mandrel assembly on the second side of the tire of the vehicle, the winch assembly configured to rotate the mandrel assembly to produce a tightening force to tighten the strap assembly around the portion of the tire. The system still further includes a release mechanism disposed between the winch assembly and the mandrel assembly and configured to create a coupling between the winch assembly and the mandrel assembly in a manner that transmits the tightening force from the winch assembly to the mandrel assembly. The release mechanism is configured to release the coupling between the winch assembly and the mandrel assembly when a force greater than or equal to a predetermined force is produced against the release mechanism. Full Article
it Transport system for large items By www.freepatentsonline.com Published On :: Tue, 03 Mar 2015 08:00:00 EST A transport system for transporting large items wherein the large items comprise at least three through going holes and said system comprises a frame to support the items. Said frame has a substantially rectangular shape and comprises two parallel longitudinal beams connected by two parallel transverse beams and further comprises at least two transverse support bars to support the items, which transverse support bars are located between the two parallel transverse beams. The transport system further comprises a first and a second rod to be mounted in two through going holes in the items where each end of the first and second rod can be connected to the longitudinal beams to secure the items to the frame in such a way that no part of the large items extends over the rectangle defined by the two parallel longitudinal beams and the two parallel transverse beams. Full Article
it Removable bull ring with rotating attachment plate By www.freepatentsonline.com Published On :: Tue, 10 Mar 2015 08:00:00 EDT A bull ring for a vehicle comprises a top plate coupled to a rotating plate having a tie-down. Two opposing rail flanges extend from the rotating plate and a fastener selectively couples the rotating plate in a securing position relative to the top plate. The rail flanges extend beyond an outer edge of the top plate to define a clamping region with the top plate. Full Article
it Side rail of a flatbed trailer for use with cargo restraint devices By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT A side rail of a floor assembly of a trailer, such as a flatbed trailer, including a channel formed in a top wall of the side rail and an aperture formed in the top wall of the side rail at a location spaced-apart from the channel. The channel extends along a length of the side rail and is configured to receive a first cargo restraint device therein. The aperture is configured to receive a second cargo restraint device therein. Full Article
it Manual wheel chocks with enhanced bracing upon depolyment By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT An example wheel restraint includes a track to be positioned adjacent a vehicle approach path of a loading dock. A shuttle is pivotally coupled to the track via a track follower and pivots between a home position and a deployed position about a shuttle axis substantially parallel to and offset relative to a longitudinal axis of the track. A barrier is pivotally coupled to the shuttle and pivots between a non-blocking position and a blocking position about a pivot axis substantially parallel to and spaced apart from the longitudinal axis of the track such that the shuttle rotates in a first direction about the shuttle axis when the shuttle moves from the home position to the deployed position and bather rotates in a second direction about the pivot axis when the barrier moves from the non-blocking position to the blocking position, where the first direction being different than the second direction. Full Article
it Apparatus for securing the position of a boat on a trailer By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An apparatus for selectively securing a boat to a trailer may include a hull contact structure for abutting against the boat hull, and a releasable gripping structure positioned adjacent the hull contact structure to engage the boat's securing loop and selectively lock onto the loop to hold the boat to the trailer. Full Article
it Paper roll transit pad By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The present disclosure relates to methods and devices for securing cylindrical goods in containers during transportation. Some embodiments include void fillers configured to restrain motion of objects in freight containers. Some embodiments include methods of fabricating void fillers for use in freight containers. Some embodiments include methods of using void fillers to restrain object motion in freight containers. In some cases, a void filler is fabricated from a honeycomb-style cardboard materials. In some cases, a void filler is used to restrain an upright cylindrical item such as an upright paper roll in a freight container. Full Article
it Universal digital block interconnection and channel routing By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A programmable routing scheme provides improved connectivity both between Universal Digital Blocks (UDBs) and between the UDBs and other micro-controller elements, peripherals and external Inputs and Outputs (I/Os) in the same Integrated Circuit (IC). The routing scheme increases the number of functions, flexibility, and the overall routing efficiency for programmable architectures. The UDBs can be grouped in pairs and share associated horizontal routing channels. Bidirectional horizontal and vertical segmentation elements extend routing both horizontally and vertically between different UDB pairs and to the other peripherals and I/O. Full Article
it Latch circuit and clock control circuit By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A latch circuit includes a latch unit and a clock propagation suppressing unit. The latch circuit holds and outputs input data of 0 or 1. The clock propagation suppressing unit compares the input data input to the latch unit with output data output from the latch unit. When it is detected that the input data matches the output data at 0, or that the input data matches the output data at 1, an externally input clock signal is prevented from propagating to the latch unit. Full Article
it Methods for operating a memory interface circuit including calibration for CAS latency compensation in a plurality of byte lanes By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A method for quickly calibrating a memory interface circuit from time to time in conjunction with operation of a functional circuit is described. The method uses controlling the memory interface circuit with respect to read data capture for byte lanes, including controlling CAS latency compensation for the byte lanes. In the method control settings for controlling CAS latency compensation are determined and set according to a dynamic calibration procedure performed from time to time in conjunction with functional operation of a circuit system containing one or more memory devices connected to the memory interface circuit. In the method, determining and setting the control settings for controlling CAS latency compensation is performed independently and parallely in each of the byte lanes. Full Article
it Bridge output circuit, motor driving device using the same, and electronic apparatus By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A bridge output circuit includes an output terminal, a high side transistor, a low side transistor, a high side driver for controlling a gate voltage of the high side transistor, a low side driver for controlling a gate voltage of the low side transistor, and a controller for controlling the high side and low side drivers. The low side driver includes a first current source, a second current source, and a first assist circuit. The controller is configured to control the turning-on and turning-off states of the first current source, the second current source and the first assist circuit. Full Article
it Input buffer circuit By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT There is provided an input buffer circuit having hysteresis characteristics. The input buffer circuit includes: a first operating unit performing a NOR operation on an input signal and a first signal; a second operating unit performing a NAND operation on the input signal and a second signal; and an inverting unit inverting outputs of the first and second operating units to generate a second signal and a first signal, respectively, wherein reference levels of the first and second operating units determining a high or low level of the input signal are set to be different. Full Article
it Multi-threshold flash NCL circuitry By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT Multi-threshold flash Null Convention Logic (NCL) includes one or more high threshold voltage transistors within a flash NCL gate to reduce power consumption due to current leakage by transistors of the NCL gate. High-threshold voltage transistors may be added and/or may be used in place of one or more lower voltage threshold transistors of the NCL gate. A high-Vt device is included in the pull-up path to reduce power when the flash NCL logic gate is in the null state. Full Article
it Nonvolatile logic circuit architecture and method of operation By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT Magnetoelectronic (ME) logic circuits and methods of operating the same are disclosed. Microsystems of different circuits made from different types of ME devices can be constructed and employed in applications such as sensors, smart dust, etc. Full Article
it Architectural floorplan for a structured ASIC manufactured on a 28 NM CMOS process lithographic node or smaller By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A floorplan for a Structured ASIC chip is shown having a core region containing memory and VCLB logic cells surrounded by a plurality of IO connection fabrics that include a first IO connection fabric comprising IO sub-banks connecting the core of the chip to pins for external signals to the core, a first high-speed routing fabric disposed along the east-west vertical top of the core and connects the core to high-speed IO such as SerDes; a network-aware connection fabric connects the core to a microcontroller primarily for testing and repair of the memory in the core; and a second-high speed routing fabric is disposed on the north-south vertical sides of the core and communicates with the IO sub-banks. The VCLB Structured ASIC chip is manufactured on a 28 nm CMOS process lithographic node or smaller, having several metal layers and preferably is programmed on a single via layer. Full Article
it Circuit and layout techniques for flop tray area and power otimization By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT Techniques for reducing scan overhead in a scannable flop tray are described herein. In one embodiment, a scan circuit for a flop tray comprises a tri-state circuit configured to invert an input data signal and output the inverted data signal to an input of a flip-flop of the flop tray in a normal mode, and to block the data signal from the input of the flip-flop in a scan mode. The scan circuit also comprises a pass gate configured to pass a scan signal to the input of the flip-flop in the scan mode, and to block the scan signal from the input of the flip-flop in the normal mode. Full Article
it Driving circuit with zero current shutdown and a driving method thereof By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT Methods and circuits related to a driving circuit with zero current shutdown are disclosed. In one embodiment, a driving circuit with zero current shutdown can include: a linear regulating circuit that receives an input voltage source, and outputs an output voltage; a start-up circuit having a threshold voltage, the start-up circuit receiving an external enable signal; a first power switch receiving both the output voltage of the linear regulating circuit and the external enable signal, and that generates an internal enable signal, the internal enable signal being configured to drive a logic circuit; when the external enable signal is lower than a threshold voltage, the driving circuit is not effective; when the external enable signal is higher than the threshold voltage, the start-up circuit outputs a first current; and where the output voltage at the first output terminal is generated by the linear regulating circuit based on the first current. Full Article
it Glitch free clock multiplexer By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT Apparatus for glitch-free switching between two clock sources on an integrated circuit. Clock gaters provide a clock from a single source that can be turned on and off without causing partial pulses to be created. Control circuitry going to the individual clock gaters provides the ability to shut all clocks off for a period of time equal to the longest clock period. By combining the clocks with an OR gate and gating all clocks off before switching from one clock to another, a glitch-free train of clock pulses can be created from individual clock inputs. Since clock glitches can cause erratic behavior in integrated circuits, this invention allows one to switch between different (unrelated) clocks without causing erratic behavior. Full Article
it Semiconductor integrated circuit By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A semiconductor integrated circuit includes: a main-interconnect to which supply voltage or reference voltage is applied; a plurality of sub-interconnects; a plurality of circuit cells configured to be connected to the plurality of sub-interconnects; a power supply switch cell configured to control, in accordance with an input control signal, connection and disconnection between the main-interconnect and the sub-interconnect to which a predetermined one of the circuit cells is connected, of the plurality of sub-interconnects; and an auxiliary interconnect configured to connect the plurality of sub-interconnects to each other. Full Article
it System and methods for generating unclonable security keys in integrated circuits By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A system and methods that generates a physical unclonable function (“PUF”) security key for an integrated circuit (“IC”) through use of equivalent resistance variations in the power distribution system (“PDS”) to mitigate the vulnerability of security keys to threats including cloning, misappropriation and unauthorized use. Full Article
it Impedance tuning circuit and integrated circuit including the same By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An impedance tuning circuit includes a calibration unit and a post-processing unit. The calibration unit generates an initial pull-up code and an initial pull-down code by performing a calibration operation using an external resistor during an initial impedance tuning operation. The post-processing unit outputs the initial pull-up code and the initial pull-down code as a final pull-up code and a final pull-down code during the initial impedance tuning operation, and generates the final pull-up code and the final pull-down code by using the initial pull-up code and the initial pull-down code during a subsequent impedance tuning operation. Full Article
it Isolator circuit and semiconductor device By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An isolator circuit capable of two-way electrical disconnection and a semiconductor device including the isolator circuit are provided. A data holding portion is provided in an isolator circuit without the need for additional provision of a data holding portion outside the isolator circuit, and data which is to be input to a logic circuit that is in an off state at this moment is stored in the data holding portion. The data holding portion may be formed using a transistor with small off-state current and a buffer. The buffer can include an inverter circuit and a clocked inverter circuit. Full Article
it Semiconductor device having serializer converting parallel data into serial data to output serial data from output buffer circuit By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Disclosed herein is a device that includes first and second buffer circuits connected to a data terminal and a first control circuit controlling the first and second buffer circuits. The first control circuit receives n pairs of first and second internal data signals complementary to each other from 2n input signal lines and outputs a pair of third and fourth internal data signals complementary to each other to first and second output signal lines, where n is a natural number more than one. The first and second buffer circuits are controlled based on the third and fourth internal data signals such that one of the first and second buffer circuits turns on and the other of the first and second buffer circuits turns off. Full Article
it Time division multiplexed limited switch dynamic logic By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A limited switch dynamic logic (LSDL) circuit includes a dynamic logic circuit and a static logic circuit. The dynamic logic circuit includes a precharge device configured to precharge a dynamic node during a precharge phase of a first evaluation clock signal and a second evaluation clock signal. A first evaluation tree is configured to evaluate the dynamic node to a first logic value in response to one or more first input signals during an evaluation phase of the first evaluation clock signal. A second evaluation tree is configured to evaluate the dynamic node to a second logic value in response to one or more second input signals during an evaluation phase of the second evaluation clock signal. A static logic circuit is configured to provide an output of the LSDL circuit in response to the dynamic node according to an output latch clock signal. Full Article
it Time division multiplexed limited switch dynamic logic By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A method for increasing performance in a limited switch dynamic logic (LSDL) circuit includes precharging a dynamic node during a precharge phase of a first and second evaluation clock signal. The dynamic node is evaluated to a first logic value in response to one or more first input signals of a first evaluation tree during an evaluation phase of the first evaluation clock signal. The dynamic node is evaluated to a second logic value in response one or more second input signals of a second evaluation tree during an evaluation phase of the second evaluation clock signal. A signal of the LSDL circuit is outputted in response to the dynamic node according to an output latch clock signal. Full Article
it Level shifter with output spike reduction By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A level shifter, or method, producing a final output from a driver supplied by a high-side source driver providing VDD or common, and a low-side source driver providing common or VSS. A delay is introduced to prevent a source driver output at common from beginning to transition toward a supply rail until a delaying source driver at a rail begins transitioning toward common. The level shifter may be single-ended or differential, and the delaying source driver may be coupled to the same final output driver as is the delayed source driver, or may be coupled to a different final output driver. The level shifter may have a second level shifter front end stage, which may have high-side and low-side intermediate source driver outputs coupled by a capacitor, and/or may couple one of the supplies to all intermediate source drivers via a common impedance or current limit Zs. Full Article
it Level shift circuit By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT There is provided a level shift circuit free from malfunction. The level shift circuit converts a signal of a first power supply voltage of a first supply terminal, which is supplied to an input terminal, into a signal of a second power supply voltage of a second supply terminal and outputs the converted signal to an output terminal. The level shift circuit has a control circuit that detects when the first power supply voltage reduces below a predetermined voltage. The voltage of the output terminal of the level shift circuit is fixed to the second power supply voltage or a ground voltage according to a detection signal of the control circuit. Full Article
it Gate driver, driving circuit, and LCD By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT There is disclosed a gate driver, a driving circuit, and a liquid crystal display (LCD), wherein the gate driver comprises input terminals for inputting a CPV signal, an OE signal, and an STV signal, and output terminals for outputting a CKV signal and a CKVB signal, and a processing circuit is connected between the input terminals and the output terminals for processing the CPV signal, the OE signal, and the STV signal such that a preset time interval is present between the falling edge of the CKV signal and the rising edge of the CKVB signal during one period of the CKV signal, or a preset time interval is present between the rising edge of the CKV signal and the falling edge of the CKVB signal during one period of the CKVB signal. Full Article
it Level shifter with low voltage loss By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A system and method are disclosed for level shifting a DDC bus with a low voltage loss. A pull up circuit includes an NMOS transistor, a PMOS transistor and resistor. An NMOS pull up gate is also included in line with the DDC bus. When powered, the level shifter adjusts the voltage of transmitted signals to match the voltage of a receiving device. The resulting adjusted is slightly lower due to a threshold voltage lost across one or more transistors. Additionally, when unpowered, the level shifter releases the signal transmission line. Unadjusted signals can then be transmitted without consumption of power by the level shifter. Full Article
it Method and apparatus for reducing power consumption in a digital circuit by controlling the clock By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A method and apparatus that controls the clock of a digital circuit, and therefore power consumption, without substantially comprising performance is provided. The apparatus may include monitoring the utilization of a First in First Out (FIFO) buffer. For example in a systems and methods according to the invention, clock speed may be reduced when the FIFO is relatively empty and increased when the FIFO is relatively full. The clock speed may be controlled by a phase locked loop, a clock divider, a clock masking device or a combination of more than one of these methods. Power reduction may also be obtained by controlling the clocking of different stages of a pipelined device. One or more aspects of the inventions may be implemented in combination with other aspects of the invention to further reduce power use. Full Article
it Standard cell connection for circuit routing By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Embodiments described herein provide approaches for improving a standard cell connection for circuit routing. Specifically, provided is an IC device having a plurality of cells, a first metal layer (M1) pin coupled to a contact bar extending from a first cell of the plurality of cells, and a second metal layer (M2) wire coupled to the contact bar, wherein the contact bar extends across at least one power rail. By extending the contact bar into an open area between the plurality of cells to couple the M1 pin and the M2 wire, routing efficiency and chip scaling are improved. Full Article
it Method for downloading a configuration file in a programmable circuit, and apparatus comprising said component By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The present invention relates to a method for downloading a binary configuration file in a programmable circuit implemented in a device. The device comprises at least one central processing unit, a plurality of connectors, and a programmable circuit enabling all or a part of the signals received by said connectors to be processed and transmitted to at least one other circuit of the device. The device analyzes the signals present on the connectors in order to define what other devices are connected and whether the connections are operational. Then, a configuration file is selected from among a set of configuration files according to the operational connections and is downloaded from a memory of the device into the programmable circuit. The invention also relates to a device having a component programmed according to the method previously described. Full Article
it Placement of storage cells on an integrated circuit By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method for configuring the placement of a plurality of storage cells on an integrated circuit includes grouping the plurality of storage cells into a plurality of words, where each of the plurality of words is protected by an error control mechanism. The method also includes placing each of the storage cells on the integrated circuit such that a distance between any two of the storage cells belonging to one of the plurality of words is greater than a minimum distance. The minimum distance is configured such that a probability of any of the plurality of words experiencing multiple radiation induced errors is below a threshold value. Full Article
it Semiconductor integrated circuit having a switch, an electrically-conductive electrode line and an electrically-conductive virtual line By www.freepatentsonline.com Published On :: Tue, 16 Jun 2015 08:00:00 EDT A semiconductor integrated circuit including: a circuit block having an internal voltage line; an annular rail line forming a closed annular line around the circuit block and supplied with one of a power supply voltage and a reference voltage; and a plurality of switch blocks arranged around the circuit block along the annular rail line, the plurality of switch blocks each including a voltage line segment forming a part of the annular rail line and a switch for controlling connection and disconnection between the voltage line segment and the internal voltage line. Full Article
it Oscillation frequency adjusting circuit By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT According to one embodiment, a first oscillator has an oscillation frequency that is changed depending on a temperature. A second oscillator has different temperature characteristics from the first oscillator. An on-chip heater heats the first oscillator and the second oscillator. A counter counts a first oscillation signal of the first oscillator. An ADPLL generates a third oscillation signal on the basis of a second oscillation signal of the second oscillator and corrects the frequency of the third oscillation signal on the basis of a count value of the counter. Full Article
it Single differential-inductor VCO with implicit common-mode resonance By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A circuit for a single differential-inductor oscillator with common-mode resonance may include a tank circuit formed by coupling a first inductor with a pair of first capacitors; a cross-coupled transistor pair coupled to the tank circuit; and one or more second capacitors coupled to the tank circuit and the cross-coupled transistors. The single differential-inductor oscillator may be configured such that a common mode (CM) resonance frequency (FCM) associated with the single differential-inductor oscillator is at twice a differential resonance frequency (FD) associated with the single differential-inductor oscillator. Full Article