Showing papers in "IEEE Transactions on Consumer Electronics in 1984"
TL;DR: The Phone Slave is an intelligent answering machine, conversing with callers to format messages and relaying personal greetings to identified partles through speech recognition or Touch-Tones over the phone network.
Abstract: The Phone Slave is an intelligent answering machine, conversing with callers to format messages and relaying personal greetings to identified partles. Its owner can access these voice messages as well as electronic mail via speech recognition or Touch-Tones over the phone network. Access to both lncoming and outgoing messages, an on-line directory, and autodial features are also provided by a touch-sensitive color monitor.
179Â citations
TL;DR: Today, microcomputers are included in many kinds of home electrical devices and communications network services have reached new stages of advancement with the development of new communications media such as videotex, broadcast satelites, teletex, and two-way CATV.
Abstract: Today, microcomputers are included in many kinds of home electrical devices. Also, there has been a rapid proliferation in the number of home information devices such as home computers, video discs, VTR's, and other home information processing or storage means. On the other hand, communications network services have reached new stages of advancement with the development of new communications media such as videotex, broadcast satelites, teletex, and two-way CATV. These have given portability and allowed multiple installation for the home terminal situation.
39Â citations
TL;DR: In this paper, a sub-committee for the purpose of formulating standards for the broadcasting and reception of multichannel television sound which was to include stereophonic as well as second program (second language, for example) enhancements of the main audio program was formed.
Abstract: In late 1978, the Broadcast Television System Committee of the Electronic Industries Association, on behalf of the television industry, formed a sub-committee for the purpose of formulating standards for the broadcasting and reception of multichannel television sound which was to include stereophonic as well as second program (second language, for example) enhancements of the main audio program. On December 22, 1983, the industry chose the Zenith transmission system coupled with the dbx noise reduction system and submitted the combined system, the BTSC system, to the Federal Communications Commission on January 30, 1984. On April 23, 1984, the FCC released a Report and Order in Docket No. 21323 wherein the choice of technical standards was left to the marketplace, but protection was afforded to the pilot frequency of the BTSC system. In addition, if a pilot is transmitted at 15.734 kHz, the BTSC system must be employed as described in the FCC office of Science and Technology Bulletin No. 60.
13Â citations
TL;DR: CATV networks have great potential for high- speed data transmission owing to their excellent C/N and wide bandwidth but there are still many problems in implementing the system-the incompatibility of much of the present CATV equipment and the interference of CATV services.
Abstract: CATV networks have great potential for high- speed data transmission owing to their excellent C/N and wide bandwidth Their rapid proliferation makes them very attractive as data transmission media but there are still many problems in implementing the system-the incompatibility of much of the present CATV equipment and the interference of CATV services
12Â citations
TL;DR: A five-year industrywide effort resulted in a new standard for transmission of stereo information with the simultaneous opportunity for broadcasting a separate Second Audio Program (SAP) channel that includes a unique three-part companded noise-reduction system.
Abstract: The US Federal Communications Commission recently authorized the broadcast of multichannel sound for television. A five-year industrywide effort sponsored by the Electronics Industries Association resulted in a new standard for transmission of stereo information with the simultaneous opportunity for broadcasting a separate Second Audio Program (SAP) channel. This standard includes a unique three-part companded noise-reduction system intended to allow broadcasters to increase their programing options without reducing present coverage area.
12Â citations
TL;DR: The new generation teletext decoder, unlike its predecessor introduced in 1976, is user programmable under the control of a general purpose microcomputer or microprocessor.
Abstract: The new generation teletext decoder, unlike its predecessor introduced in 1976, is user programmable under the control of a general purpose microcomputer or microprocessor. The new decoder is programinable to operate in the Vertical Blanking Interval (VBI) or full field teletext mode of operation. It can, simultaneously, acquire multi-pages resulting in a much faster system response time.
12Â citations
TL;DR: World System Teletext is now firmly established as a practical working service in several countries and operating experience over the past seven years has shown the soundness of the basic concepts, with the ruggedity of the transmissions and economy of the decoders being of vital importance.
Abstract: World System Teletext is now firmly established as a practical working service in several countries. Operating experience over the past seven years has shown the soundness of the basic concepts, with the ruggedness of the transmissions and economy of the decoders being of vital importance.
11Â citations
TL;DR: While the Compact Disc (CD) players have been gradually spread, a higher- performance for the error correction capability has been required in order to protect reproduced audio signals against errors due to scratches, finger prints etc. on a disc.
Abstract: While the Compact Disc (CD) players have been gradually spread, a higher- performance for the error correction capability has been required in order to protect reproduced audio signals against errors due to scratches, finger prints etc. on a disc. On the other hand, the CD player have been given attention as a data file system, which provides a lower cost, more capacity and reliability than a conventional data file such as floppy disc system and so on. In order to apply a CD player to such a data file system what is called "CD ROM", an improvement of the error correction capability is also required.
10Â citations
TL;DR: The Direct Broadcasting Satellite (DBS) service has just started in Japan and the digital audio signals are directly transmitted to homes by the satellite BS-2 with low noise, ghost free video signals.
Abstract: The Direct Broadcasting Satellite (DBS) service has just started in Japan. The digital audio signals, which provide higher fidelity sound than FM broadcasting, are directly transmitted to homes by the satellite BS-2 with low noise, ghost free video signals.
9Â citations
TL;DR: In the field of security systems, many soultions have been devised aimed at implementing a "true electronic key" but they are unsatisfactory due to the need of electrical contacts with the lock or of power supply in the remote control systems.
Abstract: In the field of security systems, many soultions have been devised aimed at implementing a "true electronic key" but they are unsatisfactory due to the need of electrical contacts with the lock or of power supply in the remote control systems. In addition, some solutions are not 100% secure because the access code canbe easily copied or falsified; so the best solution is a system that has the following features:--No electrical contacts with the Code Receiver, thus avoiding defective operations in the presence of dirt.-An adequate amount of internal non-volatile coding storage, so as to have a large number of possible combinations.-As greater difficulty as possible in copying or falsifying the internal code.
8Â citations
TL;DR: In the case of large capacitance MLC capacitors, the precious metal cost constitutes large proportion of the selling price of the capacitor as discussed by the authors, which is too expensive for consumer electronics applications.
Abstract: Multilayer ceramic (MLC) capacitor with small size, large capacitance and low cost are increasingly demanded as components for miniaturized electronic equipment. The conventional dielectric materials for MLC capacitors are mainly based on BaTiO3 . They are co-fired in air with internal electrodes at around 1,300 oC.) Therefore, the internal electrodes must be a precious metal, such as platinum or palladium, in order to prevent oxidation or reaction with dielectrics. In the case of large capacitance MLC capacitors, the precious metal cost constitutes large proportion of the selling price of the capacitor. So, large capacitance MLC capacitor is too expensive for consumer electronics applications.
TL;DR: Open captions are not a general solution to the problem of hearing-impaired viewers with normal hearing as discussed by the authors, however, they can be served to a limited extent by the addition of "open captions" to programs, (sub-titles seen on all receivers).
Abstract: At the end of 1971 although there were in the United States and Canada over 100 million television receivers in use, the hearing-impaired community had been largely deprived of the benefits of television programming. With the exception of some sports events, the sound portion of the program carries a significant part of the intelligence so that without it the program cannot be enjoyed. While the hearing-impaired can be served to a limited extent by the addition of "open captions" to programs, (sub-titles seen on all receivers), viewers with normal hearing find open captions distracting and therefore it is not a general solution to the problem.
TL;DR: For video signal processing in VHS VCR's a set of integrated circuits is under development, which leads to an implementation consisting of 4 IC's for PAL, NTSC, or SECAM single standard machines, and 5 ICs for a dual standard PAL/SECAM machine.
Abstract: For video signal processing in VHS VCR's a set of integrated circuits is under development, which leads to an implementation consisting of 4 IC's for PAL, NTSC, or SECAM single standard machines, and 5 IC's for a dual standard PAL/SECAM machine.
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TL;DR: In this paper, the rotary head was used to improve the sound quality of the 8mm VCR system, and the FM sound multiplex recording system was developed and standardized.
Abstract: Improvement of the sound quality for home VCRs has been strongly desired. As the tape velocity becomes smaller according to the high density recording, the conventional fixed sound head gives poor quality in S/N and frequency response. It is well known that the sound quality is greatly improved by recording the sound signal with rotary heads. Using this concept, FM sound multiplex recording system has been developed and standardized in the 8mm VCR system in March 1983. 1), 2)
TL;DR: The quality of an FM stereo receiver is usually evaluated by its sensitivity, but even a receiver with a high sensitivity cannot always receive the desired broadcast clearly, and the listener is often annoyed by unpleasant noise.
Abstract: The quality of an FM stereo receiver is usually evaluated by its sensitivity. Among experts, the term sensitivity means usable sensitivity measured in a laboratory. But to users who do not have expert knowledge, it has the broader meaning of "it can receive clearly without noise." In practical use, however, even a receiver with a high sensitivity cannot always receive the desired broadcast clearly, and the listener is often annoyed by unpleasant noise.
TL;DR: A new digital TV for both the NTSC and the PAL systems has been developed by using a 2-line memory for the Y/C memory and the contour correction.
Abstract: A new digital TV for both the NTSC and the PAL systems has been developed. High picture quality was obtained by using a 2-line memory for the Y/C separation and the contour correction. Also, this digital TV is so designed that new features can be easily added to it.
TL;DR: In this paper, the electronic still camera system was proposed based on solid state imaging technology and high density magnetic recording technology, which was used for high-density data acquisition and processing.
Abstract: The electronic still camera system was proposed based on solid state imaging technology and high density magnetic recording technology. 1)
TL;DR: In this article, signal processing ICs for a single-chip CCD color camera have been developed, and the signal processing method and the structure of the ICs are reported.
Abstract: As home videotape recorders have come into wide use, a need for a reduction in the size, weight, and power consumption of color video cameras has become obvious. This need can be met using a solid-state imager such as a CCD, but only if at the same time system ICs are used for the circuits. For this purpose signal-processing ICs for a single-chip CCD color camera have been developed. The signal- processing method and the structure of the ICs will be reported.
TL;DR: Field and picture stores, based on digital CCD memories 3, allow reduction of noise, cross colour and flicker, and create features as still picture, picture-in-picture, etc.
Abstract: In earlier papers 1,2 a TV concept has been presented for picture improvement and features. Field and picture stores, based on digital CCD memories 3, allow reduction of noise, cross colour and flicker, and create features as still picture, picture-in-picture, etc.
TL;DR: The main application for monolithic integrated GHz-Frequency dividers in Si-planar technology is in automatic tuning systems used in TV-tuners and thus normally in the frequency range up to 1 GHz, to guarantee the demanded high input sensitivity of a few millivolts over the total frequency range.
Abstract: Todays main application for monolithic integrated GHz-Frequency dividers in Si-planar technology is in automatic tuning systems used in TV-tuners and thus normally in the frequency range up to 1 GHz. To guarantee the demanded high input sensitivity of a few millivolts over the total frequency range, a preamplifier is incorporated in these IC's. For equivalent applications in cable-TV, the customer requires max. frequencies up to 1.5 GHz, in the case of satellite-TV with direct receiving even up to 2.4-2.5 GHz.
TL;DR: High quality stereophonic sound from a television receiver requires improvements in thermal noise performance and in intercarrier buzz, over current practice, which can be reduced by lowering transmitter incidental carrier phase modulation and by receiver Nyquist slope elimination.
Abstract: High quality stereophonic sound from a television receiver requires improvements in thermal noise performance and in intercarrier buzz, over current practice. Buzz can be reduced by lowering transmitter incidental carrier phase modulation and by receiver Nyquist slope elimination. Buzz due to tuner-caused spurious phase modulation is eliminated through an intercarrier detection process. Nyquist slope elimination is combined with intercarrier detection in the Quasi-split, or quasi-parallel, sound type receiver.1,2 The improvement in noise performance is obtained through dbx companding which also contributes to the reduction of intercarrier buzz and distortion.
TL;DR: Four kinds of ICs for use in the PCM audio system of 8mm VIDEO with only one 2K-byte RAM are developed and can be used in record/playback and NTSC/CCIR modes.
Abstract: We have developed four kinds of ICs for use in the PCM audio system of 8mm VIDEO. Only one 2K-byte RAM is used to construct the entire system. Moreover, they can be used in record/playback and NTSC/CCIR modes.
TL;DR: This paper will attempt to make the viewpoint of at least one manufacturer known, as well as discuss and analyze several different methods for measuring RFI isolation.
Abstract: Signal leakage continues to be a critical issue for systems operators and hardware manufacturers alike. The FCC's viewpoint and their actions surrounding this issue have been well documented in the past several months, as have been the opinions of several major MSO's. The viewpoint of the manufacturer, however, has been noticeably absent from recent publications documenting the issue. This paper will attempt to make the viewpoint of at least one manufacturer known, as well as discuss and analyze several different methods for measuring RFI isolation.
TL;DR: In this article, the transfer drum method is used to transfer mirror image patterns of mother and copy tape to achieve high speed duplicating of half-inch video tape for home-use VCRs.
Abstract: A system for duplicating prerecorded video tapes at high speed has been developed. The system employs contact printing and can handle half-inch video tapes for home-use VCRs. In contact printing, the mother tape must have three times higher coercivity than that of a copy tape with a coercivity of 650 Oersted. For this purpose, a metal tape was developed whose coercivity is approximately 2000 Oersted. To attain a duplicating speed of more than one hundred times the normal speed, the "Transfer Drum Method" has been devised. Mirror mother and copy tapes are wrapped around the transfer drum, so that the coated surfaces of both tapes face each other. By means of air pressure the tapes are pressed firmly together and a bias transfer field is applied using a stationary transfer bias head; these conditions allow a mirror image pattern of mother tape to be transferred at the same time. The system can handle either pancake or cassette copy tapes, a feature which decreases duplication cost and increases operational reliability.
TL;DR: The optical video disc system may be characterized by its capacity to store a large number of pictures and functions such as random access and trick play.
Abstract: The optical video disc system may be characterized by its capacity to store a large number of pictures and functions such as random access and trick play. Its application to simulation, education and game systems was anticipated from the start of its development.
TL;DR: The voice characteristics conversion technique described herein is best suited for speech systems either a text-to-speech or analysis-synthesis (meaning record-playback) using LPC synthesizers.
Abstract: Text-to-speech systems available today generate virtually unlimited speech from a prestored component sounds library, which is frequently created from a male voice. A major reason for that is due to the low pitch profile in the male voice. For example, the speech analysis software and commercial synthesizers seem to work more accurately and better with the male voice than the female voice. To overcome the analysis and synthesis problem on the female voice and to provide the choices of having more than one sex of voices output from a text-to-speech system, some means of voice characteristics conversion is needed. To do so, it is important to first understand what parameters in speech define the perception of different sex. An attempt is underway herein to first study these parameters and then to learn to adjust them so that the voice of one sex can be converted to another or from one voice character to another. The voice characteristics conversion technique described herein is best suited for speech systems either a text-to-speech or analysis-synthesis (meaning record-playback) using LPC synthesizers.
TL;DR: The 8 mm Video system aims to achieve a small-sized & light-weighted design, a good quality picture and a high quality sound, and to improve a recording density and realize a compact cassette-tape & a small cylinder mechanism.
Abstract: The 8 mm Video standard was determined by the Working Groups in 8 mm Video Conference which is composed of tuany companies in the world in March, 1983. The 8 mm Video system aims to achieve a small-sized & light-weighted design, a good quality picture and a high quality sound. Metal head and metal powder( MP)/evaporated(ME) tape improve a recording density and realize a compact cassette-tape & a small cylinder mechanism.
TL;DR: An automatic kinescope biasing system has been developed which addresses many of the classical problem in this type of system and uses a grid pulsing technique to gain inmunity to heater-cathode leakage.
Abstract: An automatic kinescope biasing system has been developed which addresses many of the classical problem in this type of system. The system uses a grid pulsing technique to gain inmunity to heater-cathode leakage. The current reference employed varies with the cutoff of the gun in use to minimize bias error and a unique kine driver configuration allows cathode current and sensing to be performed at a low voltage, low impedance output without the use of extra semi-conductor devices. The operation of the system is described and all pertinent relationships are derived.
TL;DR: In this paper, a new type of monolithic AM receiver has been designed and integrated in a conventional 400MHz-fT bipolar process, which can be reduced considerably thanks to the unconventional approach, which uses an upconversion system.
Abstract: A new type of monolithic AM receiver has been designed and integrated in a conventional 400MHz-fT bipolar process. Adjustments and band switches are completely eliminated, and production costs can be reduced considerably thanks to the unconventional approach, which uses an upconversion system.