Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 5506627 | Phase locked loop chain for locking audio sampling to serial digital component vide timing A phase locked loop (PLL) chain for locking audio sampling to serial digital component video timing has a deserializer that recovers a video sample clock signal from a serial digital video signal, the deserializer including a wide bandwidth PLL. A trackin... | 04/09/1996 |
| 5479351 | Time-keeping system and method for synchronizing independent recordings of a live performance in post-recording editing A GPS receiver comprises a data output port for communicating time code information formatted according to standards published by the Society of Motion Picture and Television Engineer (SMPTE). Such time code information is input to independent sound, film... | 12/26/1995 |
| 5467139 | Muting apparatus for a compressed audio/video signal receiver A compressed audio/video, A/V, receiver provides A/V component timing reference signals (PTS's) coincident with reproduction of associated decompressed component signals. Synchronization apparatus generates a function of the difference of occurring compon... | 11/14/1995 |
| 5463425 | Synchronizing apparatus for synchronizing audio signal with video signal A synchronizing apparatus includes an audio signal processing counter which is preset such that 735 or 736 samples of audio data exist in the vertical synchronizing signal of the video signal, such that the video and audio data are synchronized with each ... | 10/31/1995 |
| 5430485 | Audio/video synchronization in a digital transmission system A receiver (FIG. 2 ) for decoding associated compressed video and audio information components transmitted in mutually exclusive "frames" of data with respective time stamps PTSvid and PTSaud respectively, includes a controller (216)... | 07/04/1995 |
| 5387943 | Semiautomatic lip sync recovery system A semiautomatic lip sync recovery system for time synchronizing the audio and video channels of a television signal uses programmable delay circuits in each channel. An area of the image represented by the video channel is defined within which motion rela... | 02/07/1995 |
| 5351090 | Video and audio signal multiplexing apparatus and separating apparatus When transmitting an audio signal by multiplexing in a synchronous period of a video signal, a buffer memory for time axis adjustment of the audio signal is controlled. The number of audio signal samples in the buffer memory is detected in every n fields ... | 09/27/1994 |
| 5351092 | Synchronization of digital audio with digital video A method for synchronization of a digital audio signal sampled at a standard audio frequency with the corresponding digital video signal sampled at a standard video frequency associates an integer number of samples of the digital audio signal with each vi... | 09/27/1994 |
| 5202761 | Audio synchronization apparatus An audio synchronizer apparatus having a delay detector for accurately measuring the delay of a video apparatus, coupled with a controllable, variable delay audio delay circuit for accurately delaying an audio frequency signal by substantially the same am... | 04/13/1993 |
| 4963967 | Timing audio and video signals with coincidental markers A method for timing audio and video component signals of a television signal with coincidental markers generates a field pulse every Nth field of the televison signal at the transmitter. The duration of the field pulse is approximately one video field, an... | 10/16/1990 |
| 4821097 | Apparatus and method for providing digital audio on the sound carrier of a standard television signal A television transmission system replaces the standard FM audio portion of a television signal with digital audio. Three digital audio channels are time division multiplexed on the sound carrier, using combined multi-phase and AM modulation. The audio sig... | 04/11/1989 |
| 4724491 | Inserting television advertising spots automatically A downlink dish receives television signals from a remote location transmitted by satellite. Satellite receivers demodulate these received signals and normally transmit them through a switch to modulators which modulate respective carrier signals to retra... | 02/09/1988 |
| 4692803 | CATV converter having phase locked loop for sound carrier wave frequency control A CATV converter has a phase locked loop (PLL) circuit for controlling the sound carrier wave frequency of the audio signal component of the resulting TV signal. The PLL circuit receives as inputs a branched part of the video signal component and a part o... | 09/08/1987 |
| 4641253 | Process for synchronizing computer video with independent audio A process for use of a low-cost personal computer to display video images which provide the effect of animation in synchronization with an audio program, such as voice or environmental sounds, originating independently of the computer. The computer is pro... | 02/03/1987 |
| 4080626 | Discontinuous motion special effects generator for television A discontinuous motion special effects generator for television is described including a memory means responsive to a television video signal for storing signals representing a television picture field and memory control means for controlling the writing ... | 03/21/1978 |
