Patent application number | Description | Published |
20080273858 | Video Trick Mode System - A method for producing an auxiliary video stream arranged for reverse trick mode playback from a video stream including a plurality of uni-directional predicted frames, the method including producing the auxiliary video stream by performing the following steps copying each uni-directional predicted frame included in the video stream into a memory, thereby producing a plurality of copied frames in the memory, replacing each one of the plurality of copied frames with one corresponding supplemental frame, thereby producing a plurality of corresponding supplemental frames, and producing a copy of the video stream arranged in reverse processing order, the producing a copy including replacing each frame which corresponds to one of the plurality of copied frames with the one corresponding supplemental frame from among the plurality of corresponding supplemental frames. Related methods and systems are also described. | 11-06-2008 |
20090100186 | SYSTEM FOR DATA STREAM PROCESSING - A method for processing a data stream including receiving a transport stream (TS), storing at least a portion of the TS, the at least a portion of the TS having a beginning and including a plurality of TS packets, determining, from among the plurality of TS packets, at least one TS packet including a candidate access point, storing in an index store a byte offset of the candidate access point; and storing in the index store a plurality of indications of byte offset, each byte offset being associated with an arrival time of a received TS packet. | 04-16-2009 |
20090178073 | Method and system for control of broadcast content access - A method for controlling access to content, the method comprising: receiving content in an area in which access to the content is blacked out, the content corresponding to a blacked out event; preventing display of the content at the time of receipt; recording the received content; and allowing access to the recorded content after a time criterion is met, wherein the time criterion comprises an elapse of a predetermined period of time measured from a specified one of the following: commencement of the blacked out event and termination of the blacked out event. | 07-09-2009 |
20090199231 | Time shifted interactive television - Methods and apparatus for managing, implementing and using interactive applications and content that are digitally recorded and viewed in real-time and/or a time-shifted moded are provided. The interactive applications may be associated with television programs or may be unrelated thereto, and may be transmitted together with television programs or separately therefrom. Interactive applications that are employed in a time-shifted mode can be matched to current conditions and interactive content may be updated to include current data. Users may view and manipulate highlights of television programs and receive alerts of occurrence of real-time events during viewing of recorded material. Additional manipulations of interactive applications and content are also enabled. Related apparatus and methods are also described. | 08-06-2009 |
20100278229 | System for random access to content - A method for accessing a desired point in time-synchronized data within a stream, the stream being associated with time information, the method including providing a desired presentation time associated with a desired point within a time-synchronized data stream, determining a stream access point, decoding the stream beginning at the stream access point, and assigning a time associated with the stream access point as a utilization time. Related apparatus and methods are also disclosed. | 11-04-2010 |
20140270720 | Video Trick Mode System - A method for producing an auxiliary video stream arranged for reverse trick mode playback from a video stream including a plurality of uni-directional predicted frames, the method including producing the auxiliary video stream by performing the following steps copying each uni-directional predicted frame included in the video stream into a memory, thereby producing a plurality of copied frames in the memory, replacing each one of the plurality of copied frames with one corresponding supplemental frame, thereby producing a plurality of corresponding supplemental frames, and producing a copy of the video stream arranged in reverse processing order, the producing a copy including replacing each frame which corresponds to one of the plurality of copied frames with the one corresponding supplemental frame from among the plurality of corresponding supplemental frames. Related methods and systems are also described. | 09-18-2014 |
Patent application number | Description | Published |
20080311877 | DETERMINATION OF WIRE METRIC FOR DELIVERY OF POWER TO A POWERED DEVICE OVER COMMUNICATION CABLING - A method of powering from a power sourcing equipment to a powered device over communication cabling, the method comprising: determining the effective resistance between a power sourcing equipment and a powered device; determining the length of communication cabling between the power sourcing equipment and the powered device; calculating a metric of the constituent wires of the communication cabling between the power sourcing equipment and the powered device responsive to the determined effective resistance and the determined length of communication cabling; and setting current limits for the powering of the powered device from the power sourcing equipment responsive to the calculated metric. In one embodiment the metric is one of a cross-sectional, an effective resistance per unit length and a current carrying capability of the constituent wires. | 12-18-2008 |
20090243565 | METHOD AND APPARATUS FOR DETECTING END OF START UP PHASE - A PSE configured to determine the end of the start up phase at the PD responsive to a condition of the voltage at the PSE output. In one particular embodiment, the startup phase end is determined responsive to a PSE output voltage within a predetermined range of the PSE input voltage. In another particular embodiment, the startup phase end is determined responsive to the voltage drop associated with the PSE current limiter being lower than a predetermined maximum. In yet another particular embodiment, the startup phase end is determined responsive to the absolute value of the rate of change of the PSE output voltage being lower than a predetermined value. In yet another particular embodiment, the startup phase end is determined responsive to the absolute value of the rate of change of the voltage drop associated with the PSE current limiter being lower than a predetermined value. | 10-01-2009 |
20100115299 | COMPENSATION FOR HIGH POWERED MIDSPAN POWER SOURCING EQUIPMENT - A midspan unit arranged to supply power to a powered device over data communication cabling constituted of a signal conditioner exhibiting a transfer function with a gain of not less than −0.4 dB as compared with: (K | 05-06-2010 |
20100171626 | Enhanced Classification for Power Over Ethernet - A method of classification of power requirements in a power over Ethernet system, the method comprising: providing a first classification voltage for a first classification cycle time, the provided first classification voltage being within a classification voltage range defined by a lower classification voltage limit and upper classification voltage limit; measuring a first current flow responsive to the provided first classification voltage; subsequent to the first classification cycle time, providing a voltage outside of the classification voltage range for a classification indexing time; subsequent to the classification indexing time, providing a second classification voltage for a second classification cycle time, the provided second classification voltage being within the classification voltage range; measuring a second current flow responsive to the provided second classification voltage; determining a classification responsive to the measured first current flow and the measured second current flow; and allocating power responsive to the determined classification. | 07-08-2010 |
20120081017 | LED STRING DRIVER WITH POWER FACTOR CORRECTOR AND CURRENT GOVERNOR - A solid state lighting controller arranged for use with a single stage power factor correction switched mode power supply, a light emitting diode (LED) string and a current sense element arranged to sense current through the LED string, the solid state lighting controller constituted of: a current governor in series with the LED string exhibiting a governor differential amplifier and a governor electronically controlled switch responsive to the output of the governor differential amplifier, the current governor arranged to limit current flow through the LED string responsive to a current limit reference; and a feedback circuit exhibiting an error amplifier, the feedback circuit arranged to feedback a signal to the power factor correction switched mode power supply controller whose value is a function of the difference between the current through the LED string sensed by the current sense element and a target current signal. | 04-05-2012 |
20120086361 | POWER SAVING ARRANGEMENT FOR USE WITH A USER IMPLEMENTABLE PHASE CUT DIMMER - A power saving arrangement for use with a phase cut dimmer, the power saving arrangement constituted of: a power converter arranged to convert a received alternating current power signal to a direct current signal; a detector arranged to detect the presence, or absence, of the phase cut dimmer blocking a portion of an alternating current mains power sine wave from reaching the power converter; and a controllable minimum holding current circuit in communication with the received alternating current power signal, the controllable minimum holding current circuit responsive to an output of the detector, wherein in the event that the detector detects the absence of the phase cut dimmer, the controllable minimum holding current circuit is disabled such that a minimum holding current is not provided. | 04-12-2012 |
20120194091 | USER CONTROL OF AN LED LUMINAIRE FOR A PHASE CUT DIMMER - A phase cut angle converter with range detection for a phase cut dimmer constituted of: a phase cut angle detector arranged to detect the phase cut angle presented by the phase cut dimmer blocking a portion of an alternating current mains power sine wave from reaching a power converter, and output a signal whose value is responsive to the detected phase cut angle; a storage functionality constituted of a memory in communication with the phase cut angle detector, the storage functionality arranged to detect each of a minimum value and a maximum value for the detected phase cut angle of the phase cut angle detector and store the minimum value and the maximum value on the memory; and a signal adjustment functionality arranged to convert the detected phase cut angle to a dimming signal responsive to the stored minimum value and the maximum value for the detected phase cut angle. | 08-02-2012 |
20130335230 | Method and apparatus for indicating power level over a communication interface - A circuit is provided. The circuit includes a control circuit, a voltage sensor coupled to the control circuit, and an indicator signal coupled to the control circuit. The control circuit, responsive to the voltage sensor, is configured to detect a first classification voltage within a classification voltage range defined by a lower classification voltage limit and upper classification voltage limit, detect, after detecting the first classification voltage, an indexing voltage outside of the classification voltage range, and detect, after detecting the indexing voltage, a second classification voltage within the classification voltage range. The control circuit is further configured to set the indicator signal to a first predetermined state indicating a power type based on the detected first classification voltage, indexing voltage and second classification voltage. | 12-19-2013 |
20140139346 | Circuit for indicating power level over a communication interface - A circuit is provided. The circuit includes a control circuit, a voltage sensor coupled to the control circuit, an indicator signal coupled to the control circuit, and at least one current source. The control circuit, responsive to the voltage sensor, is configured to detect a first classification voltage within a classification voltage range defined by a lower classification voltage limit and upper classification voltage limit, detect, after detecting the first classification voltage, an indexing voltage outside of the classification voltage range, and detect a second classification voltage within the classification voltage range. The at least one current source provides a first and second predetermined classification current responsive to the first classification voltage and the second classification voltage, respectively. The control circuit is configured to set the indicator signal to a first predetermined state indicating a power type based on the detected first classification voltage, indexing voltage and second classification voltage. | 05-22-2014 |
20140218223 | MULTIPLEXED SIGMA DELTA MODULATOR - A multiplexed sigma delta modulator constituted of: a control circuitry; a multiplexer responsive to the control circuitry and arranged to receive a plurality of input signals; a comparing circuit, a first input of the comparing circuit coupled to the output of the multiplexer; an integrator, the input of the integrator coupled to the output of the comparing circuit; a latched comparing circuit, one input of the latched comparing circuit coupled to the output of the integrator; a plurality of storage elements, each associated with one of the plurality of inputs; and a feedback circuit arranged to feedback the output of the latched comparing circuit to the second input of the comparing circuit, wherein the control circuitry is further arranged to store the charge of an element of the integrator on the associated storage element when the associated signal is not passed by the multiplexer to the output of the multiplexer. | 08-07-2014 |
20140340233 | Circuit for indicating power level over a communication interface - A circuit is provided. The circuit includes a control circuit and a voltage sensor coupled to the control circuit. The control circuit, responsive to the voltage sensor, is configured to detect a first classification voltage within a classification voltage range defined by a lower classification voltage limit and upper classification voltage limit, detect, after detecting the first classification voltage, an indexing voltage outside of the classification voltage range, and detect, after detecting the indexing voltage, a second classification voltage within the classification voltage range. The control circuit is further configured to set an indicator signal to a first predetermined state indicating a power type based on the detected first classification voltage, indexing voltage and second classification voltage. | 11-20-2014 |
20150028842 | INTEGRATED LIMITER AND ACTIVE FILTER - An integrated limiter and active filter constituted of: an input node; an output node; a transistor coupled between the input node and the output node; a first control circuit coupled to the control terminal of the transistor and arranged to limit the amount of current flowing through the output node to a predetermined value which is responsive to a signal received at a first reference input; a second control circuit coupled to the control terminal of the transistor and arranged to limit the voltage appearing at the output node to a predetermined value which is responsive to a signal received at a second reference input; and a third control circuit coupled to input node and arranged to provide the second reference input, the third control circuit arranged to set the second reference input responsive to the input voltage and to a predetermined maximum allowed output voltage. | 01-29-2015 |
20150355697 | Circuit for indicating power level over a communication interface - A power classification circuit is provided. The circuit includes a control circuit, a current sensor, and an indicator signal, and a voltage source. The control circuit is configured to control the voltage source to provide a first predetermined classification voltage, detect a first classification current, provide a predetermined indexing voltage, and control the at least one voltage source to provide a second predetermined classification voltage and detect a second classification current. The control circuit is configured to detect the first classification current within a classification current range, detect a draw down current outside of the classification current range, and detect the second classification current within the classification current range. The control circuit is further configured to set the indicator signal to a first predetermined state indicating a power type based on the detected first classification current, draw down current, and the second classification current. | 12-10-2015 |
20150362966 | POWER OVER ETHERNET MIDSPAN INJECTION METHOD AND APPARATUS - A PoE midspan injector constituted of: an Ethernet device side data port; a PD side data port; a plurality of pairs of data wires coupling the Ethernet device and PD side data ports; a power reception port; a pair of first type coils; and a pair of second type coils, each second type coil coupled in series to a respective first type coil thereby forming a coil set, wherein the power reception port is coupled to each wire of a pair of data wire pairs at a respective power node, via a respective coil set, wherein the impedance of the first type coil is greater than the impedance of the second type coil when data is being transmitted at a minimum frequency, and wherein the impedance of the second type coil is greater than the impedance of the first type coil when data is being transmitted at a maximum frequency. | 12-17-2015 |