Matches 401 - 450 out of 639 < 1 2 3 4 5 6 7 8 9 10 11 12 13 >
Match Document Document Title
4758907 Method and apparatus for recording and/or reproducing PCM signals  
When a PCM signal having a sampling frequency of 32 KHz, a quantization of 12 bits per sample, and 4 channel is to be recorded onto tape, the PCM signal undergoes, prior to being recorded onto the...
4755889 Audio and video digital recording and playback system  
A microcomputer system for converting an analog signal, such as an audio or video signal representative of sound or video into a digital form for storing in digital form in a highly condensed code...
4752840 Multitrack magnetic recording and reproducing device  
A multitrack magnetic recording and reproducing device of the type, which converts analog signals into digital signals and records and reproduces such converted data by splitting onto a plurality...
4751590 Recording audio signals  
In a method of recording digital audio signals of four audio channels in association with a digital video signal in oblique tracks using a 4-head digital video tape recorder, the digital audio...
4739420 Method and apparatus for recording and reproducing a digital signal on a record medium using a rotary head  
In a system for recording and reproducing digital signals on a magnetic tape using a rotary head, in which the signals are recorded as a series of slanted tracks without guard bands, pilot signals...
4734797 PCM-signal recording and/or reproducing apparatus  
Pulse code modulated signal apparatus has a recording mode and a reproducing mode and comprises input terminals for respectively receiving input signals, a digital-to-analog converter for receiving...
4734795 Apparatus for reproducing audio signal  
An audio signal reproducing apparatus includes a player unit (10) and a pitch conversion unit (20). The player unit (10) reproduces, at variable speed, audio signal data from a recording medium...
4733313 Digital recording and playback system for X-ray video signals  
In medical image treating systems, especially when an X-ray image intensifier and TV camera are used, video signals composed of available video signals containing specified image information and...
4726067 Method of and apparatus for extending the useful dynamic range of digital-audio systems  
A method of (and apparatus for) extending the useful dynamic range of an audio reproduction system. An input acoustic signal in the audible range is transduced to form an analog electric signal...
4724495 Digital formatter, controller, and head assembly for video disk recording system, and method  
A real-time magnetic digital video disk recording system has been developed for applications in on-line digital imaging systems and off-line fast access image storage and retrieval buffers. The...
4722009 Tone restoring apparatus  
In a tone-restoring apparatus, a first and a second hold circuit latch at a period of 2T data signals read from a digital memory in response to a first and a second address supplied to the digital...
4719521 PCM recording and reproducing apparatus  
A PCM recording and reproducing apparatus record digital signals obtained by sampling and quantizing analog signals on a recording medium after adding control words, synchronizing signals, etc. to...
4714971 Method and apparatus for reproducing signals having improved rotary head tracking control  
In an apparatus for reproducing signals recorded in a plurality of slant tracks on a recording medium by a rotary head, the signals in the tracks contain a digital information signal in a first...
4710826 Apparatus with liquid crystal display panel, for recording/playing back television signal by utilizing digital audio tape recorder system  
A television video signal is compressed to the number of digital video signals sufficient for display of an image on a liquid crystal display. A television audio signal is also sampled and...
4707805 Data processing circuit for digital audio system  
There is provided a data processing circuit for processing symbol data read from a disc of a digital audio system such as a DAD player. Each of the symbol data read from the disc is first stored...
4704640 Method and apparatus for recording PCM signal  
In PCM signal recording method and apparatus using rotary heads for converting two channels of autio PCM signals each consisting of 12-bit words to a data consisting of 8-bit words and recording...
4701812 PCM recording and reproducing apparatus  
A PCM recording and reproducing apparatus provided with an overdubbing function includes an error-correcting device employing error-correcting redundant signals recorded apart from the audio...
4698810 Data recording and reproducing system with error correction capability using ECC and CRC codes  
An optical disk system. Each of data blocks supplied from a higher ranked unit is divided into a plurality of code words, each of which is added with an error correction code to be subsequently...
4698811 Method and apparatus for generating error correction codes for digitized picture signal recording/reproducing  
An apparatus for recording or reproducing codes resulting from digitalizing a picture signal on or from a video tape recorder includes a device for correcting code error produced due to...
4697212 Method and apparatus for recording a digital information signal  
A method of recording a digital data signal, such as an audio PCM signal, onto a recording medium in the longitudinal direction thereof, together with an apparatus which is suitable for this...
4694357 Apparatus and method for video signal processing  
An apparatus and method are disclosed for encoding, storing, and reading out frames of video signal, such as a television signal. Fast access to encoded frames on a disk is achieved using a...
4685004 Rotary head type PCM recording and reproduction method and system  
In a recording operation by a rotary head type PCM recording/reproducing apparatus including at least two magnetic heads, the odd-numbered sample data and the even-numbered sample data are...
4682332 Method and apparatus for recording digital signals  
Error detection/correction codes appended to a recording signal for a PCM recorder are so arranged as to ensure detection and/or correction of a dropout or error of a data block address in the...
4677621 Signal storage system  
An analog signal is stored in an analog memory device, while lower bits of a digital signal obtained by digitizing the analog signal is stored in a digital memory device. An analog signal...
4675750 Video compression system  
Video compression is achieved by taking the Hadamard transform of video data, comparing Hadamard coefficients from consecutive lines, encoding the changed coefficient values via an entropy coding...
4672480 Apparatus for recording digital data of various kinds on a slant track of a recording tape  
Digital data is recorded on a slant track of a magnetic tape by a rotary head, in which the sampling frequency of the digital data can be changed in accordance with the nature of the digital data....
4670797 Method of magnetically recording coded digital video signals and an apparatus therefor  
An improved 8-8 mpping table system in digitally and magnetically recording video signals. Video signals coded into natural binary codes consisting of 8 bits are converted into different binary...
4670796 Rotary head type PCM recorder  
The recording area of the magnetic tape is divided into a first area for recording a PCM converted audio signal and a second area for recording a PCM converted video information. In recording the...
4669000 Synchronizing circuit  
This invention relate to a synchronizing circuit for a data signal in which a data signal is divided at every predetermined number of bits, and every divided data signal is added with a...
4667317 Method for the storage on and the reproduction from an optically readable record carrier  
A method for storing and reproducing data by means of a standard compact-disk digital audio player. The bit groups in which the data words are contained are recorded at least three times, the...
4665444 Circuit for reproducing video signals  
A digital magnetic tape video recorder with dropout compensation; to prevent delays in the demodulation of the digital video signal after a dropout has ended, owing to the fact that the channel...
4663675 Apparatus and method for digital speech filing and retrieval  
An improved method and apparatus of digital speech storage and retrieval is described utilizing silence gaps for insertion of control signal information. This prevents interference with incoming...
4661862 Differential PCM video transmission system employing horizontally offset five pixel groups and delta signals having plural non-linear encoding functions  
A wide-aspect-ratio HDTV signal having 1600 luminance pixels/32 μS line and 980 lines/frame is data reduced by deleting odd pixels of each line of TV field #1 and even pixels of each line of TV...
4660097 Color video system with digital audio pulse width modulation  
A method of encoding a recording signal which includes a composite color video signal and a digital audio signal, for recording the same on and reading it from an optical video disc is disclosed....
4656539 Method and apparatus with improved tracking control for recording a digital signal  
In a system for recording and reproducing digital signals on a magnetic tape by using a rotary head, in which signals are recorded as a series of slanted tracks without guard bands, a pilot signal...
4652921 Image processing apparatus  
Video signals from radiography equipment (14) are converted to digital form and transferred via a buffer store, (2) to a parallel transfer disc store (3) in real time. These signals can then be...
4652938 Digital processing circuit for video signal  
A digital processing circuit for a video signal digital by processing a composite video signal. More specifically, a composite video signal is separated into a luminance signal and a color signal...
4651232 Method of controlling apparatus for recording and/or reproducing on a record medium  
A method and apparatus is disclosed for recording and reproducing color television signals on a magnetic media such as magnetic tape, wherein the signals recorded on and reproduced from the...
4651239 Method and apparatus for recording a digital information signal  
In a system for recording and reproducing digital signals on a magnetic tape using a rotary head, in which the signals are recorded as a series of slanted tracks without guard bands between...
4651227 Video signal recording apparatus with A/D conversion  
A video signal recording apparatus for recording outputs from a solid-state image pickup device on a magnetic disc. The output pixel signals from the solid-state image pickup device are written in...
4647986 Storing video images on disk using video time base and retrieving the images using disk time base  
A multiple channel parallel transfer digital disk recorder is used to record digitized circular video images at the video frame rate. The digital pixel values for each image frame are written onto...
4646171 Apparatus for recording and/or reproducing digital information signal  
An apparatus for recording and/or reproducing digital information signal with sampling frequencies fs1, fs2, fs3, --- fsn comprising circuit for selecting one of the sampling frequency, and circuit...
4646170 Method and apparatus for recording and reproducing a digital signal with a stationary head  
In a stationary head type PCM recorder having an A/D converter for sampling an analog signal and converting the analog signal to a digital signal, a signal processing circuit including data delay...
4646281 Read channel for an optical recorder  
A read channel for an optical recorder. Data is recorded on the media in a fixed block code. The data is read and the location of the holes within a symbol are determined for the odd and even...
4646173 Converting and decoding receiver for digital data recorded in analog form on magnetic tape  
Multi-phase/multi-level modulation data signals recorded on tape after conversion from original digital data are first converted to complex digital signals in an analog-to-digital converter in...
4644412 Video signal recording and reproducing apparatus  
A video signal recording and reproducing apparatus comprises a circuit for generating a first signal having a sampling frequency f s which is approximately a natural number multiple of a...
4641208 Recording/reproducing apparatus  
In a recording/reproducing apparatus, a program identifying number is recorded in a beginning portion of each of a sequence of programs recorded on a record medium during a first recording...
4638381 Storage of digitized video images on disk  
A multiple channel parallel transfer digital disk recorder is used to record digitized circular video images at the video frame rate. The digital pixel values for each image frame are written onto...
4638380 Digital video tape recorder apparatus  
Digital video tape recorder apparatus comprises a recording head assembly having 2n heads, where n is an integer, preferably one, two or three, a demultiplexer for demultiplexing the video samples...
4636875 Playback device for a digital signal recorded by a plurality of heads  
When recording a PCM signal, particularly an audio signal, on the oblique tracks of a magnetic tape, e.g. for example of a videorecorder, errors occur in the digital signal during the change of...
Matches 401 - 450 out of 639 < 1 2 3 4 5 6 7 8 9 10 11 12 13 >