A mounting flange for attaching an HVAC air diffuser terminal in an opening in a floor or other mounting surface. The mounting flange includes a trim ring and a flange clip. The flange clip is adjustably and movably received in a slot defined a side of the trim ring. A pawl on the flange clip engages with ratchets defined in a surface of the trim ring adjacent to the slot to maintain the flange clip in selected position relative the underside of a floor. The air diffuser terminal is secured in the floor opening between gripping surfaces on the flange clip and the trim ring. An optional screw operably connects the flange clip with the trim ring so that the diffuser may be securely tightened in the floor opening.

A backlight module includes a carrier plate, a plurality of light sources, a plurality of circular Fresnel lenses, and a plurality of cylinder Fresnel lenses. The circular Fresnel lenses are arranged in an array form on the carrier plate. The light sources correspond to the circular Fresnel lenses, and are located in a side away from the carrier plate. One cylinder Fresnel lens is set between every two adjacent circular Fresnel lenses. A length direction of each cylinder Fresnel lens is parallel to an extending direction of adjacent column of the circular Fresnel lens. The circular and cylinder Fresnel lenses are used to reflect a light incident into their surfaces, and to increase an emission angle of the reflected light.

A reflector assembly for eliminating unwanted stray lights comprising a reflector body having a reflector body focal point on a reflector body optical axis where a light source is positioned and a front opening for receiving a lens, wherein the lens is configured to reflect light rays which emanate from the light source to strike the lens to the reflector body which is configured to reflect the light rays reflected by the lens back to the light source, and to reflect light rays which emanate from the light source and reflected by the reflector body to strike the lens back to the light source.

A recessed lighting system is provided. The recessed lighting system includes a light module and a driver separately coupled to a chassis. The light module includes one or more rotatable prongs for allowing the light module to pivot while the driver and chassis remain static. By being mechanically separate, the driver does not interfere with the movement of the light module. In particular, since the light module is not directly coupled to and is mechanically separate from the driver, pivoting the light module does not require space in a cavity of an associated housing to accommodate the rotation of the driver. This independent freedom of movement allows the light module to achieve a greater degree of rotation in comparison to light modules that are mechanically dependent on drivers.

A decorative ornament capable of being completely illuminated about its surface including a hollow shell comprising a water-proof battery capsule is described. When the ornament is on display, the battery capsule is stored in a hollow shell of the ornament, in a manner such that only the removable lid of the battery capsule is visibly exposed. A battery pack, comprising one or more batteries, provides the power to illuminate the ornament and is enclosed within the battery capsule. The ornament surface is made using a water-resistant material. The battery capsule is made of a similar water-proof material and is sealed so as to prevent the battery pack from malfunctioning during various weather conditions. The battery pack's configuration enables the ornament to comprise a plurality of lighting modes, including full-on, blinking-on, and timer. The ornament can be displayed indoors or outdoors, and may be used year after year.

A backlight assembly includes a first light source unit including n light emitting members; and a light guide plate including a first side adjacent to the first light source unit, and a first groove adjacent to a first end of the first side.

A lead-free conductive paste composition contains a source of an electrically conductive metal, a fusible material, an optional additive, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the lead-free paste composition on a semiconductor substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and fusible material.

An ambient lighting jig assembly generally includes a support assembly, a trim panel, an insert panel, and a light source. The support assembly defines an inner support cavity. The trim panel is configured to be coupled to the support assembly and at least partly defines a jig opening. The insert panel is configured to be rotatably coupled to the support assembly within the jig opening and has a reflective surface. The light source is configured to emit a light stream. Further, the light source is configured to be rotatably coupled to the support assembly within the inner support cavity at a plurality of angular positions so that the light stream is projected onto the reflective surface for use in determining an optimal angle for the insert panel and the light source.

An LED assembly that includes optics and optical arrangements for light emitting diodes (LEDs). In some embodiments, a reflector is provided within a void between the lens and the LED. This reflector can reflect light emitted by the LED in a non-preferred direction back toward the preferred direction. In other embodiments, an optical element is formed or otherwise provided in the lens cavity and shaped so that, when the lens is positioned above the LED, the refractor bends the emitted light in a preferred direction. In some embodiments, both a reflector and optical element are provided in the LED assembly to control the directionality of the emitted light. Such embodiments of the invention can be used to increase the efficiency of an LED by ensuring that generated light is being directed to the target area of choice.

A light projector has a light emitting device having a light emitting surface, an optical fiber having an incident end-face to which light emitted from the light emitting surface enters, and a lens arranged between the light emitting surface of the light emitting device and the incident end-face of the optical fiber. The light emitting device, the optical fiber and the lens are arranged on one optical axis. The optical fiber includes a core region as a region including a single core of uniform refractive index or a region collectively encompassing a plurality of cores having uniform refractive index. The lens converts diffused light emitted from the light emitting surface to diffused light that widens more moderately.

There is provided an inclination sensor device. The inclination sensor device includes: a substrate which mounts an inclination sensor configured to calculate an inclination angle of a vehicle; a case which accommodates the substrate; a first positioning mechanism which positions the substrate relative to the case in a first direction that is substantially parallel to a first main surface of the substrate; and a second positioning mechanism which positions the substrate relative to the case in a second direction that is substantially perpendicular to the first main surface of the substrate.

An emergency system for a vehicle integrates many disparate equipment into single housing, including the power supply for the equipment. In one embodiment of the invention, the emergency system is a light bar. The light bar houses a power source comprising solar cell panels, a Lithium-Ion battery pack and a connection to an external supply such as the vehicle's electrical power. Energy for operating the light bar is provided by one or more of the power sources, depending on operating conditions of the light bar and each of the power sources.

A dermatological skin treatment device is provided. The device comprises a handpiece and a cutting tool, wherein the tool is inserted through the conduit and percutaneously inserted into a tissue disposed within a recessed area of the handpiece. The device and method cut the fibrous structures under the skin that cause cellulite at an angle substantially parallel to the surface of the skin and replace these structures with a non-cellulite forming structure by deploying a highly fibrous mesh through a single needle hole to create a highly fibrous layer directly or through wound healing processes. A tool is provided to aspirate excess fluid and tissue from the treatment area.

Disclosed is a method and apparatus for regulating tourniquet cuff pressure based on a personalized tourniquet pressure (PTP) to facilitate safe performance of a surgical procedure. The apparatus includes a dual-purpose tourniquet cuff adapted to encircle a region of a patient limb to provide both a sensor during a pre-surgical time period and an effector during a surgical time period. An effector module communicates pneumatically with an inflatable bladder of the cuff for maintaining pressure in the bladder near a PTP during the surgical time period to safely stop penetration of arterial blood past the cuff. A pulsation sensor that communicates pneumatically with the inflatable bladder during the pre-surgical time period senses and characterizes pressure pulsations that are indicative of penetration of arterial blood into the region of the limb encircled by the cuff. A PTP estimator is responsive to the pulsation sensor for producing an estimate of the PTP, such that the estimate of the PTP is a function of the sensed pulsations.

Apparatus for sealing a puncture communicating with a blood vessel includes a porous carrier formed from lyophilized hydrogel or other material. The plug may include at least first and second hydrogel precursors and a pH adjusting agent carried by the porous carrier in an unreactive state prior to exposure to an aqueous physiological environment. Once exposed to bodily fluids, the carrier expands as the lyophilized material hydrates to enhance and facilitate rapid hemostasis of the puncture. When the plug is placed into the puncture, the natural wetting of the plug by bodily fluids (e.g., blood) causes the first and second precursors to react and cross-link into an adhesive or “sticky” hydrogel that aids in retaining the plug in place within the puncture.

A dissecting tip is provided for use with a surgical stapler or instrument. In one embodiment, the dissecting tip is secured to the end effector of the surgical instrument, e.g., to the cartridge assembly. The dissecting tip extends distally from the end effector and is configured to dissect or separate target tissue from certain tissue, e.g., adherent, connective, joined or other tissue.

Methods and devices for ophthalmic tissue closure and fixation of ophthalmic prostheses are provided. In accordance with some embodiments, devices for both grasping and clipping a plurality of ocular tissue and ocular prostheses are provided. Various device embodiments are provided for both malleable clips and delivery of normally closed clips (i.e. shape memory). The device may accommodate a plurality of clips which include, but are not limited to: malleable metals, absorbable, shape memory, drug-eluting, and adhesive dispensing. The clips may be pigmented to match the colors of associated tissue (cornea, iris, conjunctiva, sclera, retina) to serve to camouflage fixation clips for healing duration or permanently. According to one aspect, shallow angle access to anatomy may be provided by specialized angulation of device shaft and closure jaws that are intended to access the eye through a small self-healing cornea incision and/or any ocular tissue.

An internal tissue puncture closure method and apparatus. The method and apparatus provide a folded sealing plug that provides more surface area than conventional plugs to more fully cover and seal an external situs of an internal tissue puncture. The folded sealing plug may have a weave pattern that tends to cause the sealing plug to corkscrew into the internal tissue puncture as it is compressed toward an anchor placed inside of the tissue puncture.

The present invention is directed to implantable devices for stabilizing or fusing bone structures within the spine. More specifically, the present invention is a spinal plate assembly that includes an automatic mechanism for blocking the pathway of a bone fastener once inserted to prevent unwanted backwards migration of the bone screw.

A medical device for blood flow restoration and/or for use as an implantable member in a human vessel includes a self-expanding member, a guidewire, and a connection mechanism. The self-expanding member includes a plurality of cells and filaments having specific ranges of thicknesses, widths, and heights. The self-expanding member can take on a volume-reduced coiled form with overlapped edges, and can generate optimal radial forces against a vessel wall and/or thrombus when deployed and expanded.

An elongate inserter has a distal end releasably connected to an expandable interbody fusion device and a proximal end including a trigger actuator. The interbody fusion device comprises a superior endplate and an inferior endplate that are movable in an expansion direction relative to each other in the intradiscal space. The inserter includes a lifting platform and an elevator that define cooperatively engaging ramps and ramps surfaces that upon operation of the trigger actuator cause the superior and inferior endplates to move relatively away from each other. A driver is supported by the inserter for pushing an insert into the expanded device between the superior and inferior endplates.

Various high-strength microwave antenna assemblies are described herein. The microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. The antenna is a dipole antenna with the distal end of the radiating portion being tapered and terminating at a tip to allow for direct insertion into tissue. Antenna rigidity comes from placing distal and proximal radiating portions in a pre-stressed state, assembling them via threaded or overlapping joints, or fixedly attaching an inner conductor to the distal portion. The inner conductor is affixed to the distal portion by, e.g., welding, brazing, soldering, or by adhesives. A junction member made from a hard dielectric material, e.g., ceramic, can be placed between the two portions and can have uniform or non-uniform shapes to accommodate varying antenna designs. Electrical chokes may also be used to contain returning currents to the distal end of the antenna.

A medical device used in a medical robotic system has a conduit and an orientable tip. An optical fiber coupled to a laser source and/or a catheter coupled to one or more biomaterial sources extends through the conduit and tip so that the tip of the medical device may be robotically directed towards a target tissue for laser and/or biomaterial application as part of a medical procedure performed at a surgical site within a patient. A protective sheath covers the fiber as it extends through the conduit and tip. A first coupler adjustably secures at least the sheath to the medical device and a second coupler adjustably secures the fiber to at least the sheath. A similar dual coupler mechanism may be used to secure the sheathed catheter to the medical device.

The present disclosure relates to a suture anchor inserter. The suture anchor inserter includes a handle having a proximal component, a central component coupled to the proximal component, and a distal component coupled to the proximal component and the central component, the central component capable of rotating relative to the proximal component; and a shaft comprising a proximal end and a distal end, the proximal end coupled to the handle. A method of inserting a suture anchor into bone is also disclosed.

In one implementation, a method is disclosed in which a lock sensing mode is entered for a robotic surgical instrument. In the lock sensing mode, the degrees of freedom of movement in the robotic surgical instrument are switchably reduced. Further in the lock sensing mode, one or more end effectors of the robotic surgical instrument are switchably clamped together in the robotic surgical instrument. An increased level of torque may also be applied to the end effectors to increase a gripping force applied by the one or more end effectors in response to the reduced degrees of freedom of movement in the robotic surgical instrument.

An apparatus for insertion of a medical device in the skin of a subject is provided, as well as methods of inserting medical devices.

The invention relates to a method for configuring a mobile device capable of reproducing, for a user, multimedia content previously provided by a remote content server. The invention relates to using a client installed on said electronic device to relay authentication requests between a card, preferably complying with the provisions of the Mobile Commerce Extension standard, and an authentication server that is accessible via an access point.

Data is secured on a device in communication with a remote location using a password and content protection key. The device stores data encrypted using a content protection key, which itself may be stored in encrypted form using the password and a key encryption key. The remote location receives a public key from the device. The remote location uses the public key and a stored private key to generate a further public key. The further public key is sent to the device. The device uses the further public key to generate a key encryption key, which is then used to decrypt the encrypted content protection key. A new content encryption key may then be created.

A method of authenticating a device involves establishing a local connection between a local target device and a local source device; at the source device, obtaining credentials of the target device via the local connection; at the source device, sending the credentials to a cloud authentication server via a secure communication channel; at the cloud authentication server, checking the credentials of the target device against a database of known good devices; at the source device, receiving a message from the cloud authentication server via the secure communication channel, said message indicating that the target device is authenticated; and delivering content from the source device to the target device on the condition that the target device is authenticated. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

A system administrator of a wireless LAN 100 manipulates a personal computer PC1 to change a WEP key. The personal computer PC1 authenticates a memory card MC as genuine under management of the system administrator. In the case of the authenticated memory card MC, changed setting information, as well as a previous WEP key before the change of the setting information, is written into the memory card MC. The system administrator then inserts this memory card MC into a memory card slot of a printer PRT1. The printer PRT1 authenticates the memory card MC as genuine under management of the system administrator. In the case of the authenticated memory card MC, the setting information is updated. This arrangement effectively relieves the user's workload in setting wireless communication devices, while ensuring the sufficiently high security.

A system that incorporates the subject disclosure may include, for example, instructions which when executed cause a device processor to perform operations comprising sending a service request to a remote management server; receiving from the management server an authentication management function and an encryption key generator for execution by a secure element and an encryption engine for execution by a secure device processor, sending a request to establish a communication session with a remote device; and communicating with the remote device via a channel established using an application server. The secure element and the secure device processor authenticate each other using a mutual authentication keyset. The secure element, the secure device processor and the device processor each have a security level associated therewith; the security level associated with the secure device processor is intermediate between that of the secure element and that of the device processor. Other embodiments are disclosed.

A secret stream of bits begins by receiving a public random stream contained in a wireless communication signal at a transmit/receive unit. The public random stream is sampled and specific bits are extracted according to a shared common secret. These extracted bits are used to create a longer secret stream. The shared common secret may be generated using JRNSO techniques, or provided to the transmit/receive units prior to the communication session. Alternatively, one of the transmit/receive unit is assumed to be more powerful than any potential eavesdropper. In this situation, the powerful transmit/receive unit may broadcast and store a public random stream. The weaker transmit/receive unit selects select random bits of the broadcast for creating a key. The weaker transmit/receive unit sends the powerful transmit/receive unit the selected bit numbers, and powerful transmit/receive unit uses the random numbers to produce the key created by the weaker transmit/receive unit.

A method, non-transitory computer readable medium and application manager computing device comprises obtaining at least one cryptographic key from a request by a client computing device for a user session. User information corresponding to a user is encrypted or decrypted using the cryptographic key. The request is authenticated based on encryption or decryption of the user information. The cryptographic key is deleted after the completion or termination of the user session.

The present invention provides a method and system for secured remote provisioning of a universal integrated circuit card of a user equipment. A system includes a user equipment for initiating a request for remote provisioning of an universal integrated circuit card (UICC) in the user equipment, where the request for remote provisioning includes a machine identifier (MID) associated with the user equipment and a public land mobile network (PLMN) identifier (ID) associated with an network operator. The system also includes at least one shared key management server for dynamically generating security keys and an operator shared key using the security keys, the MID. Moreover, the system includes an operator network for generating a subscription key using the operator shared key and an international mobile subscriber identity (IMSI), and provisioning the IMSI in a secured manner to the UICC of the user equipment using the security keys.

Disclosed are methods and apparatus for managing services within a computer network. In one embodiment, a message interchange network for exchanging application-level messages between services, which are located outside the message interchange network, is provided. At the message interchange network, a plurality of application-level messages, which each specify which one or more receiving services are to receive the each application-level message, are received. Each received application-level message is forward towards the one or more receiving services. Correlation information regarding each application-level message that is received into message interchange network is retained. The application-level messages are sent between pairs of the services, and the retained correlation information for each application-level message pertains to each application-level message and any other application-level messages related to the each application-level message. A query can then be received, at the message interchange network from a first service, to search the retained correlation information for specific one or more portions of the retained correlation information. A response to the query, which includes the specific one or more portions of the retained correlation information, is sent to the first service.

An infrastructure for securely communicating with electronic meters is described, which enables secure communication between a utility and a meter located at a customer, over a communication link or connection such as via a network. This enables messages to be sent from the utility to the meter and vice versa in a secure manner. The network provides a communication medium for communicating via the C12.22 protocol for secure metering. A cryptographic backend is used to cryptographically process messages to be sent to the meter and to similarly cryptographically process messages sent from the meter. By providing appropriate cryptographic measures such as key management, confidentiality and authentication, the meter can only interpret and process messages from a legitimate utility and the utility can ensure that the messages it receives are from a legitimate meter and contain legitimate information.

A data source may be configured to provide usage data including subscriber identifiers and associated information indicative of subscriber device locations and usage. A data warehouse server may be configured to perform operations including: decrypting subscriber identifiers included in usage data received from the data source using a two-way rolling key groups algorithm; re-encrypting the subscriber identifiers decrypted from the usage data to create secure encrypted identifiers using a one-way secured encryption algorithm; and correlating the subscriber identifiers in the decrypted usage data with the corresponding re-encrypted identifiers.

Described is a technology by which access to a resource is determined by evaluating a resource label of the resource against a user claim of an access request, according to policy decoupled from the resource. The resource may be a file, and the resource label may be obtained by classifying the file into classification properties, such that a change to the file may change its resource label, thereby changing which users have access to the file. The resource label-based access evaluation may be logically combined with a conventional ACL-based access evaluation to determine whether to grant or deny access to the resource.

A secret key generation apparatus and method are provided. The secret key generation apparatus includes at least one antenna, amplification/phase controllers, a transceiver, and a random signal controller. The antenna receives a wireless signal from a counterpart terminal that performs wireless communication. The amplification/phase controllers control the amplification gain and phase of the wireless signal that is received via at least one antenna. The transceiver measures the status of a wireless channel using the wireless signal having the controlled amplification gain and phase, determines parameters based on results of the measurement, and generates a secret key based on results of the determination. The random signal controller controls the amplification/phase controllers so that the amplification gain and phase are adjusted whenever the transceiver generates a secret key.

An apparatus and method for converting a random binary sequence into a random integer is provided. The present invention converts a random binary sequence into a random integer, and determines whether the corresponding random integer falls within a preset integer interval. Further, if it is determined that the random integer generated from the random binary sequence does not fall within the preset integer interval, the present invention repeatedly updates a random binary sequence until a random integer falling within the corresponding integer interval is obtained, thus outputting uniformly distributed random integers which fall within the preset integer interval.

A method, an apparatus, and a computer program product for wireless communication are provided in which a UE is equipped to generate an expression associated with a wireless device for use in a peer discovery signal, generate an expression set from the expression, a first temporal frequency, and a first time duration, and transmit the generated expression set to a base station to allow the base station to broadcast each of the expressions included in the expression set at the first temporal frequency over the first time duration. Another method, apparatus, and computer program product for wireless communication are provided in which a base station is equipped to receive an expression set from a wireless device, process the received expression set to determine each of one or more instances of an expression, and transmit each of the one or more instances of the expression.

Provided is a method in which a first device authenticates a public key of a second device. The method includes: receiving a first value generated based on the public key of the second device and a password displayed on a screen of the second device and the public key of the second device, from the second device; generating a second value based on the public key of the second device and a password input to the first device by a user of the first device according to the password displayed on the screen of the second device; and authenticating the public key of the second device based on the first value and the second value.

A method and authentication server provide a mobile key. According to the method, upon receipt of an authentication message (access authentication) that is transmitted when a subscriber logs on to the network, the authentication server extracts a subscriber identification contained in said message and generates a corresponding mobile key, which is stored together with the respective extracted subscriber identification. Upon subsequent receipt of a key request message (key request) that is transmitted when a subscriber registers, the authentication server extracts a mobile identification of the subscriber contained in said message and searches for an identical mobile identification, which can be derived in accordance with a configurable derivation function from a subscriber identification that is stored in the authentication server. Once a derived mobile identification that is identical or can be uniquely assigned to the extracted mobile identification has been found, the authentication server provides the stored corresponding mobile key that has been generated, to cryptographically protect the mobile signaling messages of the registered subscriber.

An information handling system includes a host mapped general purpose input output (GPIO), a shared memory, a board management controller, and a cryptography engine. The host mapped GPIO includes a plurality of registers. The board management controller is in communication with the host mapped GPIO and with the shared memory, and is configured to control accessibility to the plurality of registers in the GPIO, and to control write accessibility of the shared memory based on a private key received from a basic input output system requesting accessibility to the plurality of registers and write accessibility of the shared memory. The cryptography engine is in communication with the board memory controller, and is configured to authenticate the private key received from the board management controller.

A Virtual Single Account (VSA) system and method that provides a mobile user with automatic authentication and connection to a remote network via local access networks with a single password, where the local access networks may be independent of the remote network. A mobile user has a single authentication credential for one VSA that is utilized by a VSA client installed on a mobile computing device. The VSA client provides for automatically authenticating and connecting the user's mobile device to a current local access network, and the target remote network such as the user's office network. All authentication credentials are encrypted using a key generated from the user's VSA password that is generated from the user's single password. The VSA client derives the key from the submitted VSA password and decrypts all authentication credentials that are required in order to connect the mobile device to the current local access network and thereafter to the office network.

The present disclosure relates to systems and methods for secure communications. In some aspects, one or more values used to generate an encryption key used to encrypt a packet are stored in a header of the packet. The packet is transmitted with the encrypted data portion in a communication. In some aspects, one or more values used to generate an encryption key are received. The encryption key is regenerated using the one or more values.

The invention relates to a substrate-based method for forming a three-dimensional object by additive fabrication by coating a liquid radiation curable resin comprising from 30 to 80 wt % of cationically curable compounds on a substrate, contacting the liquid radiation curable resin with a previously cured layer, selectively exposing the layer of liquid radiation curable layer to actinic radiation thereby forming a cured layer, separating the cured layer at the substrate, and repeating the steps a sufficient number of time in order to build up a three-dimensional object.

A holding device (1) holds a lens (6) at its lens edge (5) with the aid of an adhesive connection (16, 17). The adhesive connection (16, 17) is applied only at one adhesive point or only at two spaced apart adhesive points (16, 17). Each holding device (1) provided with a lens (6) is positioned on the dip frame in such a manner that the lens (6) is positioned above its holding device (1). A method is provided for finishing lenses (6) wherein the lenses (6) are subjected to various sequential finishing steps of a finishing process and the lenses (6) are cemented to the same holding device during finishing. The application of adhesive is only at one adhesive point or at two spaced apart adhesive points (16, 17).

In an approach, a method of spotting music for a motion picture comprises: receiving music editor (MXE) cue related data defining a plurality of cues each having a start timecode value and an end timecode value; based on the MXE data, creating and storing an MXE timecode path, a composer (CMP) timecode path, and a cue sheet timecode path; copying one or more of the MXE cue related data to CMP cues in the CMP timecode path in a CMP spotting dataset; receiving one or more changes to the CMP cues without also modifying the MXE cue related data; applying an editing lock to the CMP cues; auto-populating the CMP cues to cue sheet cues in the cue sheet timecode path; receiving one or more changes to the cue sheet cues without also modifying the CMP cues; finalizing and distributing a cue sheet based on the cue sheet cues; wherein the method is performed by one or more special-purpose computing devices.

Disclosed herein are systems, methods, and computer readable-media for adaptive media playback based on destination. The method for adaptive media playback comprises determining one or more destinations, collecting media content that is relevant to or describes the one or more destinations, assembling the media content into a program, and outputting the program. In various embodiments, media content may be advertising, consumer-generated, based on real-time events, based on a schedule, or assembled to fit within an estimated available time. Media content may be assembled using an adaptation engine that selects a plurality of media segments that fit in the estimated available time, orders the plurality of media segments, alters at least one of the plurality of media segments to fit the estimated available time, if necessary, and creates a playlist of selected media content containing the plurality of media segments.