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IEEE Transactions on Consumer Electronics

Issue 1 • Date Feb 1991

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Displaying Results 1 - 15 of 15
  • CPLPS teletext system-a Chinese teletext system with enhanced error-protection and PDI implementation

    Publication Year: 1991, Page(s):22 - 27
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    A new Chinese teletext system based on the compatible extension of NAPLPS (North American Presentation-Level Protocol System) is reported. Three key problems-Chinese character extension, error protection, and PDI (picture description instruction) implementation-are solved. Systematic open-air trial broadcasting on the Sichuan TV station demonstrates that the CPLPS teletext system is reliable and e... View full abstract»

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  • Two-dimensional LMS adaptive filters

    Publication Year: 1991, Page(s):66 - 73
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    A novel two-dimensional least mean square (2-D LMS) algorithm is proposed. This algorithm can converge along both the horizontal and vertical directions of a 2-D plane. In order to compare this algorithm to another 2-D LMS algorithm, both are realized in the form of a 2-D adaptive line enhancer (2-D ALE), and they are applied for to enhancement of images contaminated with noise. The 2-D ALE based ... View full abstract»

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  • A digital audio signal processor for sound field controls

    Publication Year: 1991, Page(s):28 - 31
    Cited by:  Papers (2)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    A new digital audio signal processor (DASP) that is suitable for sound field control applications has been developed. An adaptable external memory configuration method is introduced. The device includes a 32-bit arithmetic and logic unit (ALU) and a 32× 24 bit multiplier/accumulator. The processor is designed to optimize sound field controls such as sound field reproduction of concert halls ... View full abstract»

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  • A compact TV ghost generator

    Publication Year: 1991, Page(s):51 - 56
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    A TV ghost generator that does not use long cables to achieve the desirable time delay is described. Instead it makes use of a video delay line and two synchronized modulators. The design of the generator is described, and test results are presented. This ghost generator provides a low-cost and convenient-to-use instrument for testing the ghost cancellation capabilities of TVs being developed or p... View full abstract»

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  • Standard sixteen segmented display for Thai numerals

    Publication Year: 1991, Page(s):96 - 99
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (148 KB)

    Eight- and nine-segment numeric display for Thai was proposed previously by Surakampontorn et al. (see ibid., vol.35, no.4, p.840, 1989). A modification that uses only the commercially available 16-segment display is proposed. One advantage of the proposed display system is that standard off-the-shelf display components can be used without the need for the production of custom eight- or nine-segme... View full abstract»

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  • Improving the resolution of selected ADCs

    Publication Year: 1991, Page(s):81 - 85
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    A technique of increasing the resolution of the counter ramp ADC (analog-to-digital converter) and successive approximation ADC without affecting their speed of operation is proposed. An n-bit simultaneous ADC is used with another m-bit successive approximation ADC or counter-type ADC to realize an (m+n )-bit ADC having the same speed of operation as an ... View full abstract»

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  • A combined-transform coding (CTC) scheme for image data compression

    Publication Year: 1991, Page(s):45 - 50
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    The authors propose a combined-transform-coding (CTC) scheme to reduce the blocking effect due to division of subblocks and to achieve better subjective performance. The proposed CTC scheme is described, and its information-theoretic properties are investigated. A comparison between the CTC scheme and conventional discrete cosine transform (DCT) and discrete Walsh-Hadamard transform (DWHT) schemes... View full abstract»

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  • Contextual analysis approach for Arabization of a microcomputer

    Publication Year: 1991, Page(s):86 - 95
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    The authors describe a contextual analysis algorithm for the analysis of entered Arabic characters that selects a proper shape for them before displaying them on the screen. The 7-bit ASMO 449 code standard and the reduced-character Amtan keyboard are selected for implementing the Arabic system. The analyzer simplifies the user interaction with the Arabic system by reducing the number of shapes of... View full abstract»

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  • Coding characteristics of the pixel-adaptive DPCM utilizing the variable-length-codes

    Publication Year: 1991, Page(s):74 - 80
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    The coding characteristics of a modified DPCM (differential pulse code modulation) method for data compression of still images for digital still cameras are described. In pixel adaptive DPCM, the pixels are classified into eight groups according to the magnitude of the prediction error of preceding pixels, and the prediction error signals of each group are quantized using eight nonlinear quantizer... View full abstract»

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  • Stereoscopic video movie camera using 300K pixel IT-CCD sensors

    Publication Year: 1991, Page(s):39 - 44
    Cited by:  Papers (2)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    A novel stereoscopic video movie camera, 3D-CAM, has been developed. It incorporates two eyelike microcamera heads using 300K pixel color IT-CCD (interline-transfer charge coupled device) sensors. The 3D-CAM records right and left images alternately through the two camera heads onto a VHS-C video cassette tape. Viewers see these images on a TV monitor through liquid-crystal shutter glasses, whose ... View full abstract»

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  • Video signal processing for HD-VCR using 1/2-inch tape

    Publication Year: 1991, Page(s):15 - 21
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    A high-definition VCR using 1/2-in tape has been developed. High-quality pictures are obtained by using a highly precise nonlinear emphasis system, a newly developed time-base corrector, and an automatic equalizer. The bandwidths for luminance and chrominance are 20 MHz and 7 MHz, respectively. The recording time is 63 min. The FM recording method is used, and four-channel PCM (pulse code modulate... View full abstract»

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  • A programmable TV sync signal generator

    Publication Year: 1991, Page(s):57 - 65
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    The author describes an erasable programmable ROM (EPROM)-based TV sync generator design method which provides both flexibility and low cost. The basic idea of the design is to prestore all of the designed sync waveforms in an EPROM and then generate these waveforms by using conventional digital circuits. The generated sync signals' parameters can be programmed easily by using the different presto... View full abstract»

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  • A low-cost approach to cellular mobile telephones

    Publication Year: 1991, Page(s):32 - 38
    Cited by:  Papers (1)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    A chip-set has been developed which substantially reduces the complexity and cost of cellular mobile phones. The architecture adopted allows the maximum use of VLSI to reduce total component count and minimize power consumption. This architecture is partitioned into five main blocks: an RF subsystem containing the receiver, tuning system, and transmitter; a continuous-time data processing block to... View full abstract»

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  • Transient response vs. tuner response with implications for HDTV

    Publication Year: 1991, Page(s):7 - 14
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    Luminance transient responses for an NTSC 2T-edged bar signal and baseband video responses are shown for ten different tuner responses permissible within representative tuner limits. Transient responses are shown to vary from 8% smear to 18% overshoot, primarily due to amplitude and group delay variations from low to medium video frequencies. This indicates the need for improvement if EDTV and HDT... View full abstract»

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  • Colorimetry for HDTV

    Publication Year: 1991, Page(s):1 - 6
    Cited by:  Papers (5)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    It is pointed out that high-definition television (HDTV) offers an opportunity to improve color rendition. It is suggested that there are three ways in which the colorimetry of future television systems can be improved. The first is to define the color characteristics of the system completely, making it possible to define quality transcoding into other systems, and correct for all possible display... 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