Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 7 - Television systems
Patents for H04N 7 - Television systems (274,023)
12/1977
12/20/1977US4064540 Time registration arrangement provided with a television camera
12/20/1977US4064536 Video scrambler and descrambler apparatus
12/20/1977US4064530 Noise reduction system for color television
12/20/1977US4064490 Information retrieval system having selected purpose variable function terminal
12/20/1977US4064460 Coaxial wired broadcasting system with tone responsive program selectors
12/20/1977US4064434 Retro-reflection communication system
12/06/1977US4062046 Laser machining
12/06/1977US4062045 Three-dimensional television system
12/06/1977US4062043 Apparatus for distributing light signals among a plurality of receivers
11/1977
11/29/1977US4060832 Digit rate reducing method in video signal transmission
11/15/1977US4058835 Scan conversion apparatus
11/15/1977US4058830 One way data transmission system
11/15/1977US4058829 TV monitor
11/15/1977US4058770 Solid state subscriber selection switches for wired broadcasting systems
11/08/1977US4057845 Group control system for visual information processing
11/08/1977US4057836 Slow scan television scan converter
11/08/1977US4057835 System for converting number of lines of television signal
11/08/1977US4057829 Communications TV monitoring and control system
11/01/1977US4056827 Optical systems for the display of visual images
10/1977
10/25/1977US4055809 Amplifying device
10/25/1977US4055756 Image coder-decoder using a matrix transform with weighted contribution of several points of the image to the formation of one point of the transform
10/18/1977US4054911 Information retrieval system for providing downstream loading of remote data and processing control thereof
10/18/1977US4054910 Communication system for the transmission of closed circuit television over an ordinary pair of wires
10/18/1977US4054909 Method and system for bandwidth-compressed transmission of a video signal in the NTSC system
10/18/1977US4054908 Videotelephone conference system
10/18/1977US4054794 Optical communications link
10/11/1977US4053931 Enhancement of a video signal produced from information stored in a digital memory
10/11/1977US4052798 Audio-visual teaching system
10/04/1977US4052737 Method and apparatus utilizing baudot code for categorizing and selectively distributing information to a plurality of utilization units
10/04/1977US4052719 Television receiver system having facility for storage and display of character information selected from digitally encoded broadcast transmissions
09/1977
09/27/1977US4051532 Auxiliary signal processing circuit for television receivers
09/27/1977US4051531 Television systems
09/27/1977US4051530 Frame-to-frame coding system
09/27/1977US4051524 Sequential video switching system
09/27/1977US4051523 Submersible camera
09/27/1977US4051377 Scanning x-ray examination apparatus
09/13/1977US4048654 Stereophonic television sound transmission system
09/13/1977US4048653 Visual display apparatus
09/13/1977US4048562 Monitoring system for voltage tunable receivers and converters utilizing voltage comparison techniques
09/06/1977US4047221 Interframe coding apparatus
09/06/1977US4047204 Variable interlace display
08/1977
08/30/1977US4045815 System for combining analog and image signals into a standard video format
08/30/1977US4045814 Method and apparatus for scrambling and unscrambling communication signals
08/30/1977US4045813 Method of operating video cameras and lights underwater
08/23/1977US4044380 Encoder and constructed answer system for television
08/23/1977US4044376 TV monitor
08/16/1977US4042958 Row grabbing system
08/09/1977US4041529 Airplane route viewing system
08/09/1977US4041398 Bi-directional digital communication network
08/02/1977US4039954 Signal distribution device for a cable television
07/1977
07/19/1977US4037250 Video switcher
07/12/1977US4035838 Cable distribution system for wide-band message signals
07/05/1977US4034405 Television facsimile transmission system
07/05/1977US4034402 Video scrambling system
07/05/1977US4034352 Phase control of clock and sync pulser
06/1977
06/28/1977US4032977 Gray scale interpolation technique
06/28/1977US4032972 Piggy back row grabbing system
06/21/1977US4031544 Television system for use in underwater exploration
06/21/1977US4031543 Communication system
06/14/1977US4030121 Video crispener
06/07/1977US4028731 Apparatus for compression coding using cross-array correlation between two-dimensional matrices derived from two-valued digital images
06/07/1977US4028725 High-resolution vision system
05/1977
05/31/1977US4027334 Standby illuminator for remote controlled viewer
05/31/1977US4027333 Multiplex color television transmission system
05/31/1977US4027331 Digital television system
05/31/1977US4027329 Surveillance system
05/31/1977US4027100 Code transmission system having buffers of approximately equal capacities on both transmitting and receiving sides
05/31/1977US4026555 Television display control apparatus
05/24/1977US4025950 Sampling video compression system
05/24/1977US4025948 Coding system for pay television apparatus
05/24/1977US4025851 Automatic monitor for programs broadcast
05/17/1977US4024576 Method and apparatus for scrambling and unscrambling communication signals
05/17/1977US4024575 Catv sine wave coding system
05/17/1977US4024574 Validation method and apparatus for pay television systems
05/17/1977US4024573 Scanning TV camera
05/10/1977US4023199 Method and apparatus for encoding color video signals
05/10/1977US4023104 System for establishing signal level for transmission of a CATV cable
05/10/1977US4022972 Transient suppression and grey level coincidence in a subscription television system
04/1977
04/26/1977US4020501 Apparatus for visualizing on a kinescope screen video signals which are either picked up by an antenna or generated in the apparatus itself
04/26/1977US4020462 Method and apparatus for form removal from contour compressed image data
04/19/1977US4019201 Method and apparatus for scrambling and unscrambling communication signals
04/19/1977US4019036 Method for the rational application of patterning signals to a patterning device, tools adapted to produce a pattern and an apparatus for carrying out the same
04/19/1977US4018986 Circuit arrangement for the transmission and presentation of an analog signal with a video signal
04/12/1977US4017679 Television pick-up and display system suitable for continuous and short-duration information pick-up and for continuous display
04/12/1977US4016750 Ultrasonic imaging method and apparatus
04/05/1977US4016361 Apparatus for storing data broadcast in digital form for generating a character display or for recording such data for later playback
03/1977
03/29/1977US4015080 Display devices
03/29/1977US4015074 Voluntary information transmitting apparatus in a wired television system
03/22/1977US4013963 Wired broadcasting systems
03/22/1977US4013828 Or time required to transmit a dithered image
03/22/1977US4012981 Electronic musical instrument provided with a waveform converter for changing a sawtooth wave tone signal into a rectangular wave tone signal
03/15/1977US4012583 Pay TV control system
03/01/1977US4010466 Method and system of electronic image storage and display
03/01/1977US4010322 High resolution low bandwidth portable telecommunication system
02/1977
02/22/1977US4009441 Multi-band television tuning apparatus
02/22/1977US4009330 Circuit for selecting frames indicative of still pictures
02/15/1977US4008369 Telephone interfaced subscription cable television system especially useful in hotels and motels
02/08/1977US4007424 Transistor switches for selecting program signals in a wired broadcasting system
02/08/1977US4007423 System and apparatus for electronic spectral analysis
02/08/1977US4007328 Videotelephone system with anti-crosstalk means
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