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IEEE Transactions on Consumer Electronics

Issue 4 • Date Nov 1989

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Displaying Results 1 - 25 of 30
  • New method for sound field reproduction

    Publication Year: 1989, Page(s):775 - 784
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    A new audio system which reproduces reflections of actual concert halls is presented. The system is based on the symmetrical six-point sound-field analysis method and a sound-field simulation method through convolution. The system reproduces realistic sound fields which cannot be reproduced by conventional stereo systems. A method for measuring hall reflections and a calculation method that displa... View full abstract»

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  • One-bit A/D D/A converters IC for audio delay

    Publication Year: 1989, Page(s):767 - 774
    Cited by:  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    A single-chip IC that provides all the functions for surround decoding of movies by using a novel digital delay system with excellent performance is described. A BiCMOS process with excellent linear characteristics was developed and applied to the new IC. It is noted that the development of this IC can help reduce the size of surround systems, while improving system performance View full abstract»

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  • Stereo zoom microphone for consumer video cameras

    Publication Year: 1989, Page(s):759 - 766
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    A compact, built-in stereo zoom microphone for consumer video cameras is described. This system provides for automatic adjustment of the audio mixing ratio, interlocked to the optical zoom lens to achieve psychoacoustically balanced natural sound. The system is designed to work in a full-stereo recording condition at viewing angle and a monaural super-directional recording condition in the telesco... View full abstract»

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  • VHS camcorder with electronic image stabilizer

    Publication Year: 1989, Page(s):749 - 758
    Cited by:  Papers (55)  |  Patents (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    A compact and low-cost automatic image stabilization (AIS) system for camcorders has been developed. The new technology used in the system consists of a vibration-type gyro sensor with vibration feedback, an AIS control system using observer theory and an intentional camera motion discrimination algorithm. This is the first AIS system developed for consumer use and applied to camcorders with an im... View full abstract»

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  • A single chip Y/C signal processing IC for VHS VCRs

    Publication Year: 1989, Page(s):741 - 748
    Cited by:  Papers (2)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    A single-chip Y/C signal processing IC for VHS VCRs in a compact 54-pin shrink package was made. The chip includes all of the luminance and chrominance signal processors with four internal filters. These filters are automatically adjusted by a chroma-PLL (phase-locked loop). This IC reduces the number of external elements and makes a video circuit smaller and less expensive. The whole block diagra... View full abstract»

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  • Advanced single-chip microcomputer for system and servo control of home VCRs

    Publication Year: 1989, Page(s):733 - 740
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    The authors describe a newly developed advanced 8-bit single-chip microcomputer applicable for system and servo controls for various VCRs that consist of multifunctional hardware by means of 1.2-μm CMOS technology. They describe the architecture of the microcomputer, the fundamental algorithm, and the advanced technology for servo control software. The application of the system is also discusse... View full abstract»

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  • FM audio IC for VHS VCR using new signal processing

    Publication Year: 1989, Page(s):723 - 732
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    A new VHS FM audio-processing IC has been developed which contains a new peak-noise-reduction system. With the new circuitry, audio filters can be fully integrated without degrading the IC performance and the total dynamic range. In addition, the trimming points of the system are reduced from 6 to 2, which results in high cost-effectiveness View full abstract»

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  • A multi-rate transcoder

    Publication Year: 1989, Page(s):715 - 722
    Cited by:  Papers (2)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    The authors describe a single-chip, half-duplex multirate transcoder device. The device is pin selectable as a 32-kb/s ADPCM (adaptive differential pulse code modulation) transcoder and a 16-kb/s subband coding transcoder, and it provides a 64-kb/s PCM passthrough option. The transcoder implementation is fully compatible with the 32-kb/s ADPCM standard defined by ANSI and CCITT recommendation G.72... View full abstract»

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  • Low cost RF identification and locating system

    Publication Year: 1989, Page(s):831 - 839
    Cited by:  Patents (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    A security system which enables the user to locate immediately any personnel in a building is described. This system uses a network of receiver units to pick up identification (ID) codes transmitted from portable transmitters worn by all personnel in the building. The ID codes are collected from the receiver units by a central processor via a communication line. The central processor then updates ... View full abstract»

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  • New development of WST in China

    Publication Year: 1989, Page(s):852 - 853
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (144 KB)

    A proposal for a Chinese character extension to WST (world system teletext) in China is described. The Chinese character basic set and some new features are introduced. Based on the proposal, the first WST decoder with the ability to decode Chinese characters transmitted in digitally coded forms was developed. Frame creation equipment and delivery equipment were also developed View full abstract»

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  • NTSC image improvements using basic inter and intra/frame signal processing

    Publication Year: 1989, Page(s):863 - 871
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    Some basic and new interframe and intraframe processing methods for improving the NTSC image are proposed and analyzed. It is shown that the NTSC system can be improved considerably through the use of comb filter techniques. These techniques, based on the use of line, field, and frame store units, take full advantage of the latest component and circuit technologies and allow the development of com... View full abstract»

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  • VHF/FM receiver with ARI/RDS secondary services simulation models

    Publication Year: 1989, Page(s):882 - 892
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB)

    On the basis of two simulation models, the authors evaluate the analysis of VHF-FM ARI/RDS receiver performance with two secondary services: analog auto-radio-information (ARI) and digital radio data services (RDS). The first approach involves processing at the 57-kHz subcarrier level. The second approach uses baseband modeling. Both simulation models are used to prove the compatibility of both se... View full abstract»

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  • Block downconverters for wireless CATV

    Publication Year: 1989, Page(s):827 - 830
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    A block downconverter developed using microwave integrated circuits, surface mount devices and regular printed circuit board technology is discussed. A multichannel and multipoint distribution service (MMDS) is used by a cable operator to provide extended coverage beyond a large city presently receiving cable television. MMDS transmitters up-convert and broadcast in the PAL form with a 8-MHz chann... View full abstract»

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  • Reflection perceptibility threshold on NTSC signals and its measurement technique in a CATV system

    Publication Year: 1989, Page(s):917 - 929
    Cited by:  Papers (1)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    The subjective effects of reflection impairment on NTSC pictures are established. Reflections in a CATV system can be analyzed using a broadband technique. The proposed RF model formulates a simple representation to describe the impairment caused by reflections. In the RF domain, reflections manifest themselves as ripple in the amplitude vs. frequency response curve. As the reflection gets closer ... View full abstract»

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  • Transversal push-pull method for optical pickup

    Publication Year: 1989, Page(s):810 - 813
    Cited by:  Patents (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    The authors have developed the transversal push-pull (TPP) method for removing track offset. The basic principle and characteristics of the TPP method are described. The proposed method has the following features: (1) ability to remove track error offset caused by objective lens shifting; (2) no chance for track error offset in recording on a write-once disk, because of one-beam scanning; (3) no l... View full abstract»

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  • A 32/24 bit digital audio signal processor

    Publication Year: 1989, Page(s):785 - 792
    Cited by:  Papers (2)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    A digital signal processor of novel architecture developed for high-performance audio applications and realizing a new level of parallelism and dynamic range is presented. The chip, featuring 32-b×24-b multiplier/accumulator and 80-ns cycle time, is fabricated using 1.2-μm CMOS double-level metal technology. The performance of audio signal processing is efficiently increased by parallel o... View full abstract»

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  • Segmented Thai numeric display

    Publication Year: 1989, Page(s):840 - 844
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    The layouts for eight- and nine-segment Thai numeric displays are presented. A BCD-to-nine segment decoder for deriving the nine-segment-layout was also designed View full abstract»

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  • Alphanumeric Persian characters using standard 16-segment displays

    Publication Year: 1989, Page(s):854 - 857
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    Layouts for the contemporary Persian (Farsi) alphabet and numerals using readily available standard 16-segment alphanumeric displays have been designed. The display has been implanted using commercially available 16-segment LED/LCD display modules intended for the display of English characters. The code converter required is much simpler than that for a 5×7 dot matrix display. A 64-word ASCI... View full abstract»

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  • On-chips MOS supply voltage converter

    Publication Year: 1989, Page(s):872 - 875
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB)

    An on-chip NMOS supply voltage conversion circuit for converting 5 V to 3 V is presented. The circuit consists of a voltage reference stage and a buffer stage. The circuit has been fully simulated, and the results are presented View full abstract»

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  • A new high-performance programmable delay line IC

    Publication Year: 1989, Page(s):893 - 900
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    A novel implementation of a programmable digital delay line based on a shift register for video applications is presented. An optimized register developed to reduce the power dissipation of the register files is described. A compromise between the power dissipation and area of the circuit is used to obtain high performance. The chip features a 20-MHz operating frequency and 200-mW power dissipatio... View full abstract»

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  • DSP type novel phase synchronizer with the method of least squares

    Publication Year: 1989, Page(s):814 - 819
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    The authors propose a digital signal processing (DSP)-type phase synchronizer that uses the method of least squares (PS-MLS). Its construction is quite different from that of the conventional phase-locked loop (PLL); there is no loop filter or voltage-controlled oscillator (VCO) in the PS-MLS. The behavior of the PS-MLS is unique. First, the input phase component is calculated. Then the input phas... View full abstract»

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  • High performance stereo bit-stream DAC with digital filter

    Publication Year: 1989, Page(s):793 - 796
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (172 KB)

    A bit-stream converter is described whose main functions are digital filtering and oversampling, noise shaping, and code conversion to generate a 1-b data stream, and 1-b D-to-A (digital-to-analog) conversion to generate an analog signal from the 1-b stream. Four operational amplifiers for the third-order low-pass filter are also integrated (two for each channel). Inherent in the multibit D/A conv... View full abstract»

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  • A microprocessor-based signature verification system

    Publication Year: 1989, Page(s):845 - 851
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    A microprocessor-based signature verification system is described. It is based on the fact that the pressure features of a signature, besides being invisible, are unique to the person signing it. The system extracts the various features from a signature pressure waveform and compares them with those previously stored in a database. Tolerances of the various features can easily be adjusted for diff... View full abstract»

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  • A microprocessor-based gate security system

    Publication Year: 1989, Page(s):858 - 862
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    A microprocessor-based security system for gate control in a housing estate is described. The system provides efficient gate access and estate control to perform the job of the gate security guard. Identification of a visitor is done mainly through direct communication with the unit of the housing estate concerned. Dialing up to the units through a hands-free telephone at the gate is generated by ... View full abstract»

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  • Polynomial economization of envelope detector static characteristics

    Publication Year: 1989, Page(s):876 - 881
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    The accuracy of the polynomial representation of envelope detector static transfer characteristics is analyzed. First, the basic relations are evaluated in the closed form. Then, the polynomial approximation is introduced in order to investigate the interaction between polynomial order and accuracy. Economization of the approximation is numerically proved View full abstract»

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Aims & Scope

The main focus for the IEEE Transactions on Consumer Electronics is the engineering and research aspects of the theory, design, construction, manufacture or end use of mass market electronics, systems, software and services for consumers.

 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
R. Simon Sherratt, IEEE Fellow
Professor of Consumer Electronics
School of Systems Engineering
The University of Reading
Reading, Berkshire RG6 6AY  U.K.
r.s.sherratt@reading.ac.uk; sherratt@ieee.org
Phone:+44 (0) 118 3788588