Abstract: An opto-electronic converter includes a plurality of light-receiving elements configured to convert light of different colors into analog signals, each of the analog signals representing a pixel, an amplifier unit configured to amplify the analog signals, into which the light is converted by the light-receiving elements, in each pixel group, the pixel group including a plurality of the light-receiving elements, the plurality of light-receiving elements converting light of different colors, and a gain switch unit configured to switch, for each of the light-receiving elements included in the pixel group, a gain of the amplifier unit to a gain determined in advance depending on a color of the light converted by the light-receiving element.

Abstract: There are provided methods and apparatus for audio and video synchronization timestamp rollover correction. A synchronization apparatus includes a synchronizer for providing synchronization information for synchronizing a video stream with an audio stream during any point in a broadcast thereof irrespective of whether the video stream and the audio stream have different rollover points for their respective timestamps. The synchronization information is encoded for an out of band transmission with respect to the broadcast of the audio and video streams.

Abstract: A visual display includes at least a first canvas configured to display a first session on the display and a second canvas configured to display a second session on the display. The first session includes first content received from a first content source and the second session includes second content having subject matter associated with the first content. The display includes a user agent configured to determine that the first content of the first session is associated with the second content of the second session and to pair the first and second canvases such that the first content and the second content are synchronized to each other.

Abstract: A method of interpolated frame generation and input source detection includes: receiving input frames; storing at least a first frame of successive frames in the input frames into a storage device under a film mode; comparing the stored first frame with a second frame of the successive frames not stored in the storage device to generate a first comparison result for determining whether to exit the film mode; and reading frames stored in the storage device to generate interpolated frames under the film mode.

Abstract: A PAL signal demodulating apparatus comprises BPF filters that perform band pass filtering to pass a chroma band for frames 1 to 5, thereby producing the BPF output signals for the frames, a 3D color phase distortion correcting color signal acquiring unit that calculates correlations between frames 1 and 3 and between frames 3 and 5 and takes a weighted average of the BPF output signals for frames 2 and 4 with weights according to the two calculated correlations, thereby producing a 3D color phase distortion correcting color signal N, and a carrier chrominance signal extracting unit that takes the addition/subtraction of the BPF output signal for frame 3 and the 3D color phase distortion correcting color signal, thereby extracting carrier chrominance signals, to perform correctly U/V separation for a line different in color from its preceding and following lines in the same frame.

Abstract: A video horizontal synchronizer outputting a line timing signal and an indicating flag of a received video signal for use in a video signal post-processing unit, including a filter outputting a wide bandwidth filtered and a narrow bandwidth filtered signals of the received video signal, a dynamic slicer threshold generator generating a slicer threshold, a timing recovery circuit generating a phase error and the line timing signal, a phase error statistics circuit averaging the phase error to generate a average phase error, a HSYNC checker generating a matching flag indicating whether a periodic pattern appears in the narrow bandwidth filtered signal according to the line timing signal, and a finite state machine controlling the dynamic slicer threshold generator, the timing recovery circuit, the phase error statistics circuit and the HSYNC checker and generating an indicating flag when the average phase error is small enough and the matching flag is confirmed.

Abstract: SECAM line identification in an analog television includes an accumulator that accumulates a FM demodulated output corresponding to a color reference tone for each SECAM line; a first leakage average filter receiving a first result from the accumulator; a second leakage average filter receiving a second result from the accumulator; and a line decision block comparing the first result and the second result. An apparatus for soft-decision based PAL switch detection in an analog television includes a burst locked oscillator (BLO) receiving a composite video signal as input and producing an instantaneous PAL switch signal for each line; a leakage average filter receiving the PAL switch signal and filtering noise from an output received from the BLO; and a switch detection block receiving a filtered output from the leakage average filter, and making a decision based on a sign of the filtered output of the leakage average filter.

Abstract: The present invention provides encryption techniques useful with digital watermarking payloads. One claim recites: a method to secure a first digital watermark payload and a second digital watermark payload through encryption of only one of the first digital watermark payload or the second digital watermark payload. The method includes: utilizing a multi-purpose computer processor configured to: provide information redundantly in the first digital watermark payload and the second digital watermark payload, yet the first digital watermark payload includes at least some information that is unique relative to at least the second digital watermark payload; encrypt the first digital watermark payload; embed a first digital watermark in media, the media representing audio, imagery or video, the first digital watermark comprising the encrypted first digital watermark payload; and embed a second digital watermark in the media, the second digital watermark comprising the second digital watermark payload.

Abstract: SECAM line identification in an analog television includes an accumulator that accumulates a FM demodulated output corresponding to a color reference tone for each SECAM line; a first leakage average filter receiving a first result from the accumulator; a second leakage average filter receiving a second result from the accumulator; and a line decision block comparing the first result and the second result. An apparatus for soft-decision based PAL switch detection in an analog television includes a burst locked oscillator (BLO) receiving a composite video signal as input and producing an instantaneous PAL switch signal for each line; a leakage average filter receiving the PAL switch signal and filtering noise from an output received from the BLO; and a switch detection block receiving a filtered output from the leakage average filter, and making a decision based on a sign of the filtered output of the leakage average filter.

Abstract: A PLL circuit compares a PCR with the output frequency of a voltage controlled oscillator (VCO), and returns a voltage value which is the result of the comparison to the VCO, so that a reference clock corresponding to the PCR is outputted from the VCO. A switch supplies a control voltage from the PLL circuit to the VCO when digital broadcasting is viewed, while feeding a fixed voltage from a fixed voltage power supply to the VCO when analog broadcasting is viewed, to stably output a clock having a frequency of 27 MHz irrespective of the change in the PCR.

Abstract: A digital color burst phase switch for determining phase shift of a color burst signal in a PAL video signal includes a phase selector for selecting either a first reference clock or a second reference clock in response to a PAL switch signal. A phase delay device delays the phase of either the first reference clock or the second reference clock selected by the phase selector to generate a third reference clock. A phase comparator compares the phase of the third reference clock to the phase of the color burst signal to generate a control signal. The control signal is integrated over substantially the entire color burst signal to generate an integration value. This integration value is compared to a threshold value in a threshold device to generate a correction signal.

Abstract: The synchronized transformer-coupled power supply circuit includes a transformer 20; an input power signal coupled to a primary winding 22 of the transformer 20; voltage regulators 48-53 coupled to secondary windings 24 and 26 of the transformer 20; and a start-up circuit 10 for coupling the input power signal directly to one of the voltage regulators 48-51 until the transformer 20 reaches a desired operating level.

Abstract: An input signal is inputted to an A/D converter through an amplifier and is converted into a digital input signal. A vertical synchronizing pulse and a horizontal synchronizing pulse are taken out of the output signal of the amplifier by means of a TV synchronizing separator and inputted to a trigger gate and selector circuit. A delay timer and a timing control circuit are operated by a selected synchronizing pulse, and the data applied with A/D conversion are stored in a memory in accordance with a set delay time and sampling synchronization. The stored data are read by means of a CPU circuit. The state of a burst signal is decided by the CPU circuit, and separation of eight fields is performed by combining that state with a set state of the TV synchronizing separator.