Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7714934 | Transmission method, transmission system, sending device and reception device Digital audio data which have a predetermined packet structure are divided into units including a predetermined number of bits; each unit of the divided digital audio data is converted into specific data to be encoded; the encoded data are arranged in blanking inter... | 05/11/2010 |
| 7394499 | Data transmitting method, data receiving method, data transmitting device, and data receiving device This invention provides a data transmission method and a data receiving method which enable audio data to be multiplexed into video data and be transmitted using a DVI standard cable or the like satisfactorily with a simple configuration. From a data transmit... | 07/01/2008 |
| 7352786 | Apparatus for driving light emitting element and system for driving light emitting element In case of driving each of light emitting parts of a surface emitting laser, each of light emitting parts is made to be in forward-bias state and switches appropriately change bias voltage, which is lower than laser oscillation threshold voltage, and drive voltages,... | 04/01/2008 |
| 7327381 | Signal transmission system, signal transmitter, and signal receiver A signal transmission system has a signal transmission apparatus including a time-base compression unit for time-base-compressing an audio signal, and a multiplexing unit for time-division-multiplexing a control signal and the time-base-compressed audio signal in a ... | 02/05/2008 |
| 7129991 | Transmission method of digital audio data with video data Digital audio data that have a predetermined packet structure are divided into units including a predetermined number of bits; each unit of the divided digital audio data is converted into specific data to be encoded; the encoded data are arranged in blanking interv... | 10/31/2006 |
| 7020498 | Portable telephone A portable telephone downloads from the music download center the music data that contain tone color data, tempo data, and a series of note data and rest data with respect to at least a single musical tune. A CPU outputs to an interface the tone color data, and the ... | 03/28/2006 |
| 6947060 | Image forming apparatus, electron beam apparatus, modulation circuit, and image-forming apparatus driving method An image forming apparatus which performs pulsewidth modulation with a pulsewidth set by counting a clock. Especially, for grayscale level correction by setting the frequency of the clock, the periodic clock is counted, and an output pattern is changed in accordance... | 09/20/2005 |
| 6759642 | Image pick-up device, camera module and camera system A camera module including a light-transmissible board having an infrared rays cutting function on one surface of which a wiring pattern is formed, an image pickup element having a photodetecting portion which is flip-chip-mounted on the same surface of the light-tra... | 07/06/2004 |
| 5956093 | Method for controlling video/audio modes in video/audio outputting apparatus An apparatus and a method for controlling video/audio modes in a video/audio outputting apparatus is provided, in which the audio mode is automatically set in relation to the video mode selected by the user. A judgment is made whether an inputted working ... | 09/21/1999 |
| 5940070 | Device and method for transmitting an audio signal using a video signal line in a computer system A data transmission apparatus for transmitting an audio signal through a video signal cable for a computer system including a monitor having a sound speaker. The computer system includes an audio generating device for generating an audio signal; a video g... | 08/17/1999 |
| 5796440 | Baseband video/audio/data transceiver The BASEBAND VIDEO/AUDIO/DATA TRANSCEIVER invention simultaneously transmits and receives baseband video signals, audio signals, and associated digital data and control signals within a single continuous signal over a single physical transmission line. Th... | 08/18/1998 |
| 5483298 | Circuit arrangement for demmodulating the sound signals in a television signal in accordance with at least two different transmission standards A circuit arrangement for demodulating the sound signals in a television signal is described, which circuit arrangement ensures a simple and low-cost structure, also for operation at different transmission standards. To this end, the circuit arrangement a... | 01/09/1996 |
| 5481370 | Apparatus for discriminating audio signals An audio signal discrimination apparatus for use in a recording and reproducing apparatus, in which an identification code is inserted into a video signal and a mode of audio signal is discriminated. The audio signal discrimination apparatus includes a sy... | 01/02/1996 |
| 5426466 | Composite video signal with audio A method for inserting an audio signal (132) into a composite video signal (10) having a front porch (24), a back porch (26 or 32), a horizontal sync pulse (20) with a leading edge (22), and a luminance portion (16) to provide an audio-on-video signal (22... | 06/20/1995 |
| 5396372 | Audio signal recording and reproducing apparatus There is provided an audio signal magnetic recording and reproducing apparatus in which a frequency modulated luminance signal and a frequency modulated audio signal are sequentially recorded and reproduced onto/from the same magnetic tape as recording lo... | 03/07/1995 |
| 5383728 | Sealing shield, particularly for rolling bearings A sealing shield, particularly for rolling bearings, of the type wherein relatively soft, elastic peripheral portions are secured to a relatively rigid intermediate portion; the intermediate portion consisting of a single rigid annular insert formed from ... | 01/24/1995 |
| 5359463 | Record/reproduce apparatus having means for switching automatically between different types of audio Apparatus is provided for recording and reproducing video and audio signals on a record medium, wherein the audio signal may be of at least two different types subjected to respectively different types of audio processing. A recording section produces fre... | 10/25/1994 |
| 5357284 | Compatible digital audio for NTSC television A method and apparatus for transmitting a digitally modulated Quadrature Phase Keyed (QPSK) audio carrier signal, or a digitally modulated Quadrature Partial Response System (QPRS) audio carrier signal, wherein the audio carrier signal is located 1.2 MHz ... | 10/18/1994 |
| 5291286 | Multimedia data transmission system A vector quantizer which transmits the input vector of the time when the minimum distortion is larger than the preset distortion threshold value and stores such input vector into the second code book as the new quantizing representative vector for the use... | 03/01/1994 |
| 5289288 | Method and apparatus for encoding a video signal having multi-language capabilities An audio/video system for encoding and decoding a video signal and a plurality of corresponding audio signals includes an encoder for receiving an input video signal, a first audio signal, and a plurality of second audio signals which correspond to the in... | 02/22/1994 |
| 5264938 | Image sensor An image sensor has blocks of light-receiving elements which are switched by respective associated thin-film transistors. Charges generated in the light-receiving elements are transferred to respective common signal lines through a matrix wiring on a bloc... | 11/23/1993 |
| 5229858 | Noise free, line form image sensor An image sensor comprising a plurality of light-receiving elements, each of which consists of a pair of photodiodes connected in series-opposition. Since the voltages generated at these photodiodes when equal intensities of light is projected on them are ... | 07/20/1993 |
| 5101274 | Digital signal recording apparatus time-division multiplexing video and audio signals A digital signal recording apparatus includes first circuitry for forming digital video data, and second circuitry for forming digital audio data. Third circuitry is provided for forming (a) video synchronizing blocks each of which comprises a predetermin... | 03/31/1992 |
| 5056138 | Television selection system A system connectable into standard television receiver systems for converting predetermined channels thereof to audio only channels and detecting selection of the predetermined channels to cause blanking of the picture tube at individual receivers in the ... | 10/08/1991 |
| 4983967 | Transmission of audio in a video signal A method of encoding an audio signal onto and decoding an audio signal from a video signal wherein, in the encoding stage, successive portions of the audio signal are sampled, time compressed and inserted in analogue form into predetermined lines in the v... | 01/08/1991 |
| 4945403 | Color television format using pulse frequency and pulse width modulation A luminance signal in a component video signal is pulse frequency modulated, and the pulse frequency modulated signal is sequentially pulse width modulated by two color difference signals alternately. Thus, the component video signal is transmitted as one... | 07/31/1990 |
| 4847698 | Interactive television system for providing full motion synched compatible audio/visual displays An interactive television system (10, 10a) for providing full motion synched compatible audio visual displays based on dynamic user selection (26) of a plurality of syllable synched compatible audio choices for a common full motion video frame presentatio... | 07/11/1989 |
| 4847699 | Method for providing an interactive full motion synched compatible audio/visual television display A method for providing a full motion synched compatible audio/visual interactive television display from a plurality of syllable synched compatible audio choices for a common full motion video frame presentation. Two or more audio channels are synched to ... | 07/11/1989 |
| 4821101 | Video system, method and apparatus An improved system, apparatus and method are disclosed for interleaving selected video fields of multiple displayable programs to facilitate viewer selection of which programs to display. Selected video fields are stored and continuously displayed until a... | 04/11/1989 |
| 4789895 | System for synchronizing digital bit stream for telecommunication system A telecommunication system for synchronizing a digital bit stream sent from a central facility to a terminal on lines of television frames. Each active line starts with a horizontal sync pulse and a color burst. A first data clock at the central facility ... | 12/06/1988 |
| 4713689 | Frequency demodulator for television receiver with time multiplexing A receiver is provided for a television system which uses time division miplexing (TDM) of analog image signals and of bursts of duobinary coded digital data signals. The digital data signals are transmitted during the line and frame blanking intervals a... | 12/15/1987 |
| 4700222 | Apparatus and method of testing the frequency response of a cable television system Apparatus and method for testing the frequency response of a cable television system by transmitting a test signal of varying frequency over the system. The test signal is transmitted during the blanking intervals between successive frames or lines of the... | 10/13/1987 |
| 4604655 | Method of recording and reproducing video format signal A method of recording and reproducing a video format signal on and from a recording medium, wherein the video format signal is reproduced on a two-dimensional picture area divided into sections having predetermined identification numbers respectively allo... | 08/05/1986 |
| 4602295 | Recording and reproducing method for video format signal A method for recording and reproducing video and accompanying audio information whereby various reproduction modes are made possible, including displaying a still image with appropriate sound, without adversely affecting the quality of the played-back sig... | 07/22/1986 |
| 4550337 | Digital video transmission system A video signal is serially enclosed for transmission in PCM form during synchronizing level intervals and encoded in a run length limited NRZ form during non-synchronizing level intervals, each PCM word being selected from minimum and maximum disallowed s... | 10/29/1985 |
| 4535356 | Music information transmission system A music information transmission system in which a music symbol on a music sheet is quantized into a digital signal by inputting that music symbol by using a key board. The digital signal is assembled into a packet, which is multiplexed on a blanking peri... | 08/13/1985 |
| 4429332 | Television compressed audio A ten second interval of audio frequency information is sampled, digitized, and stored in a memory. It is then read out of the memory very many times faster, say 400 times faster, converted to analog, combined with television synchronizing signals and tra... | 01/31/1984 |
| 4398216 | Multiple signal transmission method and system, particularly for television A method and system for scrambling a plurality of input signals for secure transmission thereof, as well as various methods and systems for television transmission, are disclosed. The disclosed scrambling technique, in one form, includes modulating an in-... | 08/09/1983 |
| 4357626 | System for broadcasting audio-visual television signals synchronized by a pilot frequency and method for the application of said system In a system for broadcasting audio-visual television signals, a pure-frequency pilot signal is recorded concurrently with the video signals. The synchronizing signals which are necessary for reproduction of the aduio-visual signals are reconstituted from ... | 11/02/1982 |
| 4286281 | Video format signal recording and reproducing device A video format signal recording and reproducing device in which an identification signal is inserted into each frame of the video format signal for identifying whether the corresponding data is video or audio data. The identification signal may further be... | 08/25/1981 |