Matches 1 - 27 out of 27
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5253059 Method and circuit for adjusting the size of a video frame  
In accordance with the present invention, the number of bits used to code a frame of video is controlled by controlling the frame size. In a preprocessing stage (40) of a video coding circuit (10),...
5220583 Digital FM demodulator with a reduced sampling rate  
A method of recovering a frequency modulated signal wherein the frequency modulated information signal is sampled at a rate less than the Nyquist sampling rate, following which the under sampled...
4899146 Method of and apparatus for converting digital data between data formats  
A method of and apparatus for converting between first and second digital data formats is disclosed whereby digital words of the first format are analyzed to detect an upper bandwidth limit of a...
4816829 Method of and apparatus for converting digital data between data formats  
A method of and apparatus for converting between first and second digital data formats is disclosed whereby digital words of the first format are analyzed to detect an upper bandwidth limit of a...
4763207 Digital method and system for reproducing analog data  
There is disclosed herein a method of and system for reproducing an analog signal using digital techniques. The system includes means for encoding the analog signal in digital form and means for...
4370643 Apparatus and method for compressively approximating an analog signal  
An input analog signal, such as a sound signal, is sampled by a sample-and-hold circuit, while sampling timing is variable in accordance with the amplitude variation of the analog signal. A...
4359608 Adaptive sampler  
An adaptive data compression device for compressing data having variable frequency content, including a plurality of digital filters for analyzing the content of the data over a plurality of...
4339818 Digital multiplexer with increased channel capacity  
A digital multiplexer accommodates a large number of voice channels per digital channel through use of an improved statistical coding technique. Analog information on the voice channels is encoded...
4286291 Digital video processor  
A digital video processor system adapted to reduce the number of digital data samples by effectively reducing the data rate to allow more efficient handling during any further manipulation. The...
4051531 Television systems  
Video input signals of a field of a first line standard are converted to a second line standard, having a reduced number of lines, via an intermediate line standard. The input signals are passed...
3996563 Data processing apparatus  
Data processing apparatus redistributes data obtained from a data signal in which data is non-linearly distributed with respect to time, the redistribution being such as to provide the obtained...
3988529 Television transmission  
A method of reducing the transmission bandwidth for television pictures is described in which the frame is divided into at least three fields each consisting of picture information from an...
3891798 Tracker unit  
A tracker unit for use in a tracking system having a television camera sensor, the tracker unit having a video signal processor that converts the sensor output video signal into contrast marker...
3755624 PCM-TV SYSTEM USING A UNIQUE WORD FOR HORIZONTAL TIME SYNCHRONIZATION  
In a communication system for transmitting and receiving television information by means of digital codes, the horizontal sync pulses are transformed into a code word, thus leaving time slots in...
3754238 METHOD AND DEVICE FOR TRANSMITTING BIVALENT SIGNALS  
The invention is concerned with a coding of telegraphic transistions based on the marking of the instant of a transition within the framework of a division of the definite sequence of the signals...
3742135 TELEVISION SYSTEMS  
Video input signals of a field of a first line standard are converted to a second line standard, having a reduced number of lines, via an intermediate line standard. The input signals are passed...
3715489 APPARATUS FOR PREVENTING BUFFER OVERFLOW IN VIDEO ENCODING SYSTEMS BY INCREASING THE SCANNING RATE OF A CAMERA DURING THE TIME INTERVAL OF THE ENCODING OF DIGITAL WORDS OF EXTRA LENGTH  
To prevent buffer overflow from line-to-line accumulation of information in video encoding systems, a detector circuit notes the occurrence of extra words or extra digits produced by a variable...
3670096 REDUNDANCY REDUCTION VIDEO ENCODING WITH CROPPING OF PICTURE EDGES  
In a conditional replenishment video system a coder selects only those samples from an input video signal which represent a significant change in amplitude for their corresponding spatial points...
3666888 PCM-TV SYSTEM USING A UNIQUE WORD FOR HORIZONTAL TIME SYNCHRONIZATION  
In a communication system for transmitting and receiving television information by means of digital codes, the horizontal sync pulses are transformed into a code word, thus leaving time slots in...
3652803 SWITCHING OF TIME DIVISION MULTIPLEX LINES THROUGH TELEPHONE CENTRAL OFFICES  
The communications channels or time slots of time division multiplex lines are enabled to be switched through a conventional common control telephone switching office by providing each line with a...
3575557 TIME DIVISION MULTIPLEX SYSTEM  
A time division multiplex system is described wherein several data input sources which run asynchronously are multiplexed onto a common link or line, together with coordination data to insure a...
3431492 TRANSIENT SIGNAL RECORDING SYSTEM UTILIZING DIFFERENT FREQUENCY RECORDING DRIVERS INCLUDING MEANS FOR SAMPLING DIFFERENT PORTIONS OF THE TRANSIENT SIGNAL AT DIFFERENT FREQUENCIES  
3414677 Time-bandwidth reduction by dividing binary type signal into groups and producing coded signal of predetermined characteristic in response to each group  
3383461 Reduced bandwidth video communication system utilizing sampling techniques  
3372266 Star position determination circuit  
3369182 Transmission of analog signals by sampling at amplitude extremes and synchronizing samples to a clock  
3340364 Signal frequency and phase sequenced time division multiplex communication system  
Matches 1 - 27 out of 27