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 |
| 7348955 | Method of controlling display method, display-use signal producing device, display device, and display system for implementing the method The sending party of a display-use image signal adds to a signal representing a display image a control parameter signal composed of a control tag signal specifying a controlled object and control start/end identification signal Ts or Te between a specific parameter... | 03/25/2008 |
| 7068322 | Broadcasting receiver A remote control transmitter is provided with an AUDIO key for switching an audio mode in sound multiplex broadcasting and an ENTER key for determining various types of selections. When the ENTER key is operated in a state where the audio mode is temporarily selecte... | 06/27/2006 |
| 6970098 | Smart biometric remote control with telephony integration method A handheld remote control device for a Media Computing Device has a biometric sensor to authenticate a user. The handheld remote control device includes a microphone and speaker to enable integration of a telephony system with the Media Computing Device. The handhel... | 11/29/2005 |
| 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 |
| 6895596 | Circuit and method for interleaving a data stream A circuit and method of interleaving a data stream (DATA) in which the data to be interleaved is contained in separate sections of the data stream. A buffer storage circuit (28) receives and stores the data stream. A first section (T1-T2) of the... | 05/17/2005 |
| 6829018 | Three-dimensional sound creation assisted by visual information A sound imaging system and method for generating multi-channel audio data from an audio/video signal having an audio component and a video component. The system comprises: a system for associating sound sources within the audio component to video objects within the ... | 12/07/2004 |
| 6829017 | Specifying a point of origin of a sound for audio effects using displayed visual information from a motion picture Displaying visual information from a motion picture in a visual field within a designated extent of a related aural field supports editing of a spatial audio effect for the motion picture. The extent of a related aural field also is displayed. Information specifying... | 12/07/2004 |
| 6192086 | Digital sub-systems and building blocks for a mostly digital low-cost BTSC compatible encoder A BTSC-compatible encoder that is integrated onto an application specific integrated circuit includes a low pass filter that is responsive to a digital representation of an audio signal that has a sample rate of FS. The low pass filter generate... | 02/20/2001 |
| 6118879 | BTSC encoder The disclosed BTSC encoder includes a left high pass filter means for receiving a digital left channel audio signal and for digitally high pass filtering the digital left channel audio signal and thereby generating a digital left filtered signal; a right ... | 09/12/2000 |
| 5929921 | Video and audio signal multiplex sending apparatus, receiving apparatus and transmitting apparatus The present invention provides a video and audio signal multiplex transmitting apparatus having a video and audio signal multiplex sending apparatus for grouping audio data to packets of a fixed length in the sending side, and multiplexing video and audio... | 07/27/1999 |
| 5796842 | BTSC encoder The disclosed BTSC encoder includes a left high pass filter means for receiving a digital left channel audio signal and for digitally high pass filtering the digital left channel audio signal and thereby generating a digital left filtered signal; a right ... | 08/18/1998 |
| 5218449 | Nervous clock signal generator for video recorder A video recorder for recording composite video signals includes an analog to digital converter for digitizing samples of the composite video signal being recorded. A sync separator separates horizontal synchronizing information from the composite video si... | 06/08/1993 |
| 5091936 | System for communicating television signals or a plurality of digital audio signals in a standard television line allocation A system is provided for selectively transmitting horizontal television lines including video and digital audio components or equivalent digital data lines containing a plurality of audio program signals. A conventional television signal transmission plac... | 02/25/1992 |
| 5072297 | Method and system for transmitting and receiving PCM audio signals in combination with a video signal A method and system for multiplexing additional audio information in the form of pulse code modulation (PCM) audio signals onto a television signal. The PCM audio signal is time multiplexed into scanning retrace intervals of the video signal. At a receive... | 12/10/1991 |
| 4964162 | Secure television signal encoding and decoding system A television signal encoding and decoding system providing a line-spin scrambled video signal with substantially reduced amplitude gaps and line tilt and a digitally-encrypted audio signal that can be transmitted within the bandwidth limitations of a conv... | 10/16/1990 |
| 4712240 | Transmission and reception of television broadcast in high-fidelity stereo audio A method and apparatus for modulating and demodulating a digitized stereo audio signal with a 3-level, partial response waveform. The 3-level, partial response waveform utilizes 3-level coded pulses rather than conventional on-off or 2-level coded pulses.... | 12/08/1987 |
| 4706109 | Television transmission system In television transmitter equipment for a television transmission system having a time multiplexed signal in component form, the vision components are derived from a vision source (1), encoded in a MAC encoder (2) and the encoded vision signals are modula... | 11/10/1987 |
| 4446488 | Video format signal recording/reproducing system In a compound voice-image video format signal for displaying stationary image with audio accompaniment, the voice identification signal placed into the vertical blanking interval prior to a voice signal portion also indicates the stereo, bilingual or mona... | 05/01/1984 |
| 4442461 | Signal recording and/or reproducing technique A video signal is recorded with the associated audio signal inserted as a PCM digital signal in the back porch portions of the horizontal blanking intervals. In order to prevent the video pre-emphasis that is used in high-density recording from degrading ... | 04/10/1984 |
| 4419920 | Apparatus for recording and reproducing musical performance Not only an image signal of a scene of performance of musical instruments and a sound signal of such performance, but also the performance data of a specific musical instrument are recorded by a video system, and by virtue of a reproduction of this record... | 12/13/1983 |
| 4321623 | Auxiliary television signal system Auxiliary signals suitable for conveying additional audio signals for stereophonic television broadcasts, bilingual sound, and the like, are transmitted in the form of modulated bursts of such auxiliary signal placed on the front porch of the composite vi... | 03/23/1982 |
| 4295155 | Gray scale sync video processing system The blacker-than-black sync pulse of a standard video signal is replaced by a gray scale sync to increase picture signal, permit audio multiplexing and allow security phase inversion by means of encoder and decoder circuitry including a sync stripper, gat... | 10/13/1981 |
| 3988528 | Signal transmission system for transmitting a plurality of information signals through a plurality of transmission channels A transmission system for transmitting a plurality of information signals having arbitrary time lengths through a plurality of transmission channels, wherein at a transmitter end said plurality of information signals are allotted to said plurality of tran... | 10/26/1976 |
| 3955211 | Multiplex transmission of television audio-visual signals The invention relates to the multiplexed transmission of television audio-visual signals which comprise, for example, a luminance signal successive chrominance signals and at least one audio signal. The method in accordance with the invention utilises a s... | 05/04/1976 |