Matches 301 - 350 out of 392 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
5010406 Apparatus for receiving character multiplex broadcasting  
A character multiplex broadcasting receiving apparatus is provided for reducing and displaying a plurality of character figure images including header information and text information. In the...
5008750 Television receiver with teletext receiving function and method of superimposing teletext picture on television picture  
In case teletext data superimposed on a television broadcast signal are to be displayed as an auxiliary picture on a main picture on which a television video signal is displayed, the teletext data...
4999706 Teletext decoders with inhibit means for precluding over-writing codes in page memory  
In a teletext decoder, the digital codes for a requested page are acquired and stored in the page memory each time the page occurs in the recurrent teletext transmission cycle. This means that the...
4992871 Method and apparatus for processing identification signals  
A method and apparatus for processing identification signals in a data signal (teletext signal) which is cyclically repeated within a television signal and which can be displayed in the form of...
4991018 Teletext decoder with improved processor which determines the beginning and end of a teletext page  
As shown in FIG. 2, a teletext decoder has a multi-page memory (MEM) comprising a plurality of memory portions (CH0 to CH3) in which individual pages can be stored on a priority basis. The numbers...
4991017 Receiver for television and teletext signals, including a teletext decoder and an adaptive waiting time reduction circuit  
A television receiver or video recorder includes a multipage teletext, a programmed control and a non-volatile page number memory with which their teletext pages with their corresponding page...
4977455 System and process for VCR scheduling  
A VCR schedule controller receives broadcast data over antenna (1) or cable (2) by a programmable tuner (3), which is connected to a teletext receiver (4). The teletext receiver (4) is connected to...
4963968 Method and apparatus for validating teletext data  
A teletext decoder comprises a validation circuit for affording an output (V) when valid teletext data pulses are received. The validation circuit comprises an error checking circuit (SR, FCCC,...
4954882 Color television set having a teletext receiver built-in  
A demodulating means receiving television broadcasting electric waves and demodulating the received television video signal and multiplexed teletext signal respectively to primary color signals of...
4953022 Teletext decoders  
A teletext decoder for teletext information comprising a plurality of different pages each of which is identified by a respective page number and each of which comprises a plurality of data packets...
4941045 Method and apparatus for improving vertical definition of a television signal by scan conversion  
Scan conversion apparatus for improving the vertical resolution of a television image for display comprises a field store for storing the previously transmitted field and a line store for storing...
4933764 Improved teletext decoder which accommodates an increased number of character codes  
A teletext decoder has a character memory comprising a common language set of characters and a plurality of sub-sets of national option characters, each of which latter sets makes up a complete...
4931870 Rapid access teletext decoder arrangement  
A teletext decoder includes a background or buffer memory operating as a first-in, first-out (FIFO) memory. The buffer memory is used for storing a large number of teletext pages. A given video...
4912555 Television receiver including a teletext decorder  
In a teletext decoder circuit the character generator supplies picture elements at a rate of nominally approximately 6 MHz under the control of display pulses occurring at the same rate. These...
4908707 Video cassette recorder programming via teletext transmissions  
A system for video recorder programming using existing television broadcast teletext transmissions. The programs required are chosen from schedules displayed on teletext pages, the necessary...
4908706 Teletext decoder arrangements  
A teletext decoder arrangement has a page memory comprising a large number of chapters or portions in which individual pages can be stored. The arrangement has a plurality of data acquisition...
4849818 Television receiver with receiving devices for processing videotext and teletext signals  
A television set with videotext and/or teletext decoders having character generators which are synchronized by the deflection generators of the television set and in which audio will be forwarded...
4845662 Data processor employing run-length coding  
A character data processor for a videotex or teletext system includes a microcomputer section, a self data processing unit and a read/write memory. A memory access period for the memory exists in...
4837620 Teletext receiver with page up and page down functions  
A teletext system with multiple page teletext memory includes a page up and a page down function. Upon direct access of a page of teletext data, appropriate flags are set in the sector memory and...
4814972 Method and videotex apparatus for fast access of remotely located information  
The method and apparatus enables a terminal to access a computer located at a distance therefrom by an uncomplicated, easy-to-understand, log-on procedure. The system includes a group of terminals...
4811407 Method and apparatus for converting analog video character signals into computer recognizable binary data  
A method and apparatus for converting a conventional analog video signal carrying alphanumeric video characters into computer recognizable data is disclosed. A signal containing composite video...
4803551 Module for use in receiving teletext signal  
A compact module for receiving teletext data contained in a composite video signal is usable with a personal computer or a videotex decoder system. The module includes a data selector for...
4800428 Circuit arrangement for a television receiver comprising a video text decoder  
A circuit arrangement for a television receiver including a video text decoder (30), producing signals from the video text data from which control signals for a picture display device can be...
4789860 Interface between a receiver and a sub-system  
An interface arrangement between a television receiver (1) and a conditional access sub-system (3), in particular for MAC type television signals comprises a bus having a first line (CKFH)...
4779138 Compact liquid crystal television receiver having information memory  
In a compact liquid crystal television receiver having an information memory, map information, train time table information, or telephone directory information is prestored in the information...
4739402 Protocol converting apparatus for videotex system  
A protocol converting apparatus in which when character information electronic signals of a NAPLPS (North American Presentation Level Protocol Syntax) system are displayed on a user terminal...
4734790 Video printing process and apparatus  
A multiple printing head, having k print points responds to binary samples hich represent a grid of points, that are continuously repeated. The m horizontal lines correspond to television lines,...
4719510 Teletext decoders  
A teletext decoder for full-channel operation includes a "row-found" register in which a flag is put for each data row which is actually present in a selected teletext page that is received and...
4701794 Television receiver comprising a teletext decoding circuit and a page number memory  
A television receiver which is suitable for displaying teletext pages comprises a control system including a microcomputer. The microcomputer is coupled to a volatile memory which comprises a...
4698677 Television receiver arrangements  
A teletext television receiver has a character memory comprising a common language set of characters and a plurality of sets of national option characters, each of which latter sets makes up a...
4688218 Multiplex channels for continuous flow for numerical signal  
A digital data pack transmission system is especially--but not exclusiveluseful in videotex or teletext transmission (i.e. videotext or teletext data is transmitted during intervals between...
4679083 Teletext device with reduced page-access time  
Arrangement for receiving and processing digital signals in teletext or associated systems, comprising a picture store and a background store, the background store being arranged immediately after...
4679082 Code transmission system character broadcasting receiver  
A receiver for receiving a code transmission system character broadcasting signal transmitted during the vertical blanking period of television video signal, including: a circuit for extracting a...
4667235 Teletext decoder  
A teletext decoder having a character pickup circuit superior in the antinoise property and response characteristic by allowing signals only in the vicinity of clock run-in signals to pass,...
4658294 Direct memory access control device for use in teletext signal receiving apparatus  
A direct memory access control device as a part of a teletext adaptor is equipped with a data separating element, a data receiving element including an improved direct memory access control device...
4654633 Method and apparatus for transforming PRESTEL codes to NAPLPS codes  
A terminal which is capable of receiving, converting and displaying both NAPLPS and PRESTEL coded signals and which includes means for invoking NAPLPS control and character codes, corresponding to...
4638497 Framing code detector for a teletext receiver  
A framing code detector includes a shift register supplied with a received framing code and a number of EX-OR gates each having one input connected to a respective stage of the shift register and...
4636859 Didon digital demodulator  
A DIDON Digital demodulator includes an input analog-to-digital conversion device which supplies n samples (n being at least equal to 4) during a DIDON period, and an identification device which...
4626913 Chroma burst derived clock regenerator for teletext decoder  
A color reference signal produced by a color oscillator is coupled to a frequency converter that generates a signal having a frequency that is a multiple of that of the color reference signal. The...
4614972 Teletext receiver  
A teletext receiver incorporating a demodulation circuit, a data demultiplexing circuit, a memory, a microprocessor and a numbering keyboard. The inventive receiver also comprises an early article...
4614971 Error eliminating system for teletext  
A system is disclosed for eliminating error in teletext signals caused by the presence of noise accompanying the teletext signals. The system includes: (1) a teletext packet buffer which receives...
4611227 Decoder for digital information T.V. signal  
A television receiver is provided with a decoder (32) for decoding and displaying data which is included in a wide band video signal. In order to provide high resolution graphics, a processor (45)...
4605964 Method and apparatus for editing the output of a television set  
In order to enable the editing of television programs in the home to exclude undesired sound or visual events (such as swearing or scenes of violence), these events are identified by coding...
4600943 Sampling pulse generator  
A sampling pulse generator utilizes sampling clocks CLi each having a frequency which corresponds to a character data signal D to be sampled. Each phase of these clocks CLi is progressively and...
4595952 Teletext decoder having a register array for operating on pixel words  
A teletext decoder extracts digital information from a video signal for displaying graphics and textual information embedded in the video signal. The decoder includes a prefix processor responding...
4595951 Teletext decoder using a common memory  
A teletext decoder extracts digital information from a video signal for displaying graphics and textual information embedded in the video signal. The decoder includes a prefix processor responding...
4593374 Teletext magazine code detector  
In a teletext decoder, a magazine code detector detects a sought after magazine number in an error-encoded teletext signal. A memory stores all allowable magazine code numbers in error-encoded...
4577227 Teletext framing code detector  
In a teletext decoder, a data slicer takes an analog teletext-encoded composite video signal and produces a plurality of serial bits therefrom. A serial-to-parallel converter forms bytes of...
4575770 Video disc data systems for interactive applications  
In a video disc mastering system, player control data is conveyed by a block code having framing and field number bits and data for use by a computer external to the player is conveyed by a...
4568964 Color television picture display device having a flicker reduction circuit  
In a color television picture display device having an arrangement (47) for converting the number of fields, additional signal paths need not be provided in the arrangement for converting the...
Matches 301 - 350 out of 392 < 1 2 3 4 5 6 7 8 >