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IEEE Transactions on Consumer Electronics

Issue 4 • Nov 1993

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Displaying Results 1 - 25 of 30
  • An application specific DSP for speech applications

    Publication Year: 1993, Page(s):733 - 739
    Cited by:  Papers (1)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    A 16-bit digital signal processor core, designed for speech applications in telecommunications and consumer electronics is described. It enables low-cost, low-power DSP processing with several levels of modularity, permitting efficient DSP-based ASIC development. The DSP core can perform speech compression for applications such as digital answering machines and cellular phones View full abstract»

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  • A low-cost broadcast digital audio system decoder integrated circuit

    Publication Year: 1993, Page(s):723 - 732
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (676 KB)

    The AC-1 digital audio system exploits psychoacoustic phenomena and employs Adaptive-Delta-Modulation (ADM) to achieve compression ratios of between 2.5 and 3.5:1 over 16-bit PCM. Until recently, the only practical decoder for this system consisted of a bipolar analog IC and numerous external high-precision components. This paper describes a semi-custom ASIC design for an AC-1 decoder, which combi... View full abstract»

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  • An experimental digital consumer HDTV recorder using MC-DCT video compression

    Publication Year: 1993, Page(s):711 - 722
    Cited by:  Papers (11)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    The concept and real-time implementation of an experimental home-use digital HDTV recorder is presented. An advanced motion-compensated DCT bit-rate reduction system is used to realize high-quality images at 50 Mbit/s only, thereby enabling small recording mechanics for portable applications and featuring a new high-efficiency channel code with embedded tracking information View full abstract»

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  • A method of noise reduction on image processing

    Publication Year: 1993, Page(s):801 - 805
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    Describes a new control method for a noise reduction system developed to eliminate blur and picture trail in moving pictures using image processing. The method uses temporal information as well as other parameters such as frequency, amplitude, and picture pattern. The technique has been applied to the noise reduction circuit of the MUSE decoding system (Japanese HDTV) View full abstract»

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  • Multipath noise reduction for mobile FM receiver

    Publication Year: 1993, Page(s):773 - 778
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    Presents a new scheme for minimizing the multipath noise in mobile FM receivers. A novel logic circuit is used to compare analog signals from tuners in real time and a new analog signal is assembled from the best available audio signals. Actual road tests have shown that over 95% of noise from multipath interferences are eliminated without degradation of audio bandwidth or stereo channel separatio... View full abstract»

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  • A new architecture for a TV graphics animation module

    Publication Year: 1993, Page(s):795 - 800
    Cited by:  Papers (4)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    A real time compression/decompression architecture is proposed and a new TV graphics animation player/edit system which provides graphics animation work with new techniques in multimedia is presented as a sample application. The authors also propose an architecture of modular boards with a resolution of 640×512 pixels to cover wide range of digital video applications View full abstract»

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  • Fast two-dimensional inverse discrete cosine transform for HDTV or videophone systems

    Publication Year: 1993, Page(s):934 - 940
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    The authors propose a new fast two-dimensional inverse discrete cosine transform (2D-IDCT) algorithm which is developed on the basis of the DCT computational kernel matrices. With the symmetrical properties of kernel matrices, one can greatly reduce the number of multiplications. With carefully grouping the DCT coefficients, the computational complexity can be further reduced, for example, if the ... View full abstract»

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  • A motion dependent vector quantizer with multiple sub-codebooks for image coding

    Publication Year: 1993, Page(s):765 - 772
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    The authors propose a motion dependent VQ(MDVQ) which reduces the searching time of the VQ encoder by means of motion estimation. In a video sequence, successive frames are usually very highly correlated. Using the successive frame difference, they can classify a motion part and a still part in a frame. In MDVQ, they make two sets of codebooks. One is the main codebook which has all codewords and ... View full abstract»

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  • Theoretical analysis of the CEBus with three priorities

    Publication Year: 1993, Page(s):816 - 823
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    A theoretical formulation for the three-priority CSMA/CD protocol of the CEBus has been developed, the PAMA/PR (priority channel assigned multiple access with priority resolution). It employs demand priority channel access, minimum wait time, persistent start of transmission to redress collisions, and contention resolution based on three priorities. A comparison of performance of throughput and de... View full abstract»

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  • ICs for digital image transmission

    Publication Year: 1993, Page(s):789 - 794
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    The digital image transmission IC digitizes and compresses picture signals from a camera for transmission over a twisted paired cable, allowing easy and inexpensive application in household video monitoring systems. Three types of integrated circuits have been developed. An encoder IC which subjects the digitized video signals to data compression and sends and receives control signals; a decoder I... View full abstract»

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  • Downloading all teletext pages to a computer

    Publication Year: 1993, Page(s):832 - 836
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    The article illustrates how to download all the broadcast teletext pages of a TV channel to a personal computer using a teletext TV-set. Thus a way is provided to manipulate the teletext information by the computational power of a computer. The information transfer is realized with minimum user intervention. The TV-set and the computer are connected with a minimum components View full abstract»

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  • Ghost cancellation system for the US standard GCR

    Publication Year: 1993, Page(s):928 - 933
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    The high energy US standard ghost cancellation reference (GCR) signal has the capability to give excellent ghost cancellation quality under adverse conditions such as high noise and changing channel characteristics. To achieve the high level of performance possible with this signal an equally high performance system must be available. This paper discusses the first system developed which uses the ... View full abstract»

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  • A ghost cancelation system for the NTSC television

    Publication Year: 1993, Page(s):896 - 904
    Cited by:  Papers (2)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    A ghost canceler for the NTSC television system is described. A three-chip digital filter with a total of 648 taps is used to adaptively cancel the ghosts. An external digital signal processor analyzes the ghosting scenario and provides the optimal set of coefficients for the filter. An interrupt driven scheme is designed to minimize the system memory requirement even when a large number of sample... View full abstract»

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  • A cost effective time domain TV ghost canceling system simulator

    Publication Year: 1993, Page(s):745 - 753
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    A new very cost effective, flexible and economic discrete time domain simulation technique for almost any TV ghost cancelling approach is described. The simulations were performed with the aid of a properly adapted off the shelf system simulator software for PCs, provided with an improved, newly designed model generator. This generator allows the creation of complex and very powerful models for th... View full abstract»

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  • Optimization of TV set technological training duration

    Publication Year: 1993, Page(s):853 - 858
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    The probability models of TV set technological training and guarantee service are considered. Methods of these models parameter estimation are proposed. The main result is the determination of the optimal preliminary and final training routine using the current technological training data. The failure rate of just assembled TV sets is comparatively high at the beginning of its operation but it gra... View full abstract»

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  • Adaptive scratch noise filtering

    Publication Year: 1993, Page(s):917 - 922
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    An adaptive method for suppressing scratch (impulsive) noise from audio signals is proposed. The algorithm has been developed primarily for the restoration of old phonograph records, but it can also be used for other applications as well. Impulses are suppressed by selectively applying variable length median filtering to contaminated signal regions only, thus minimizing distortion of clean passage... View full abstract»

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  • A new modem structure for data transmission

    Publication Year: 1993, Page(s):878 - 886
    Cited by:  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    A modem structure for high speed data communications is presented. This modem is designed to operate in the time division multiple access (TDMA) mode using quadriphase shift keying (QPSK). This new structure permits the transmission of higher data rates, thus allowing commercial businesses, such as retailers, farmers, etc., to send and receive sales and inventory figures, commodity prices, etc. wi... View full abstract»

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  • Improvement of performance in digital recording with distanced modulation code

    Publication Year: 1993, Page(s):740 - 744
    Cited by:  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    The Hamming distance concept is applied to modulation code to improve the error detection capability of the demodulator. It is helpful in increasing the error correction capability for the subsequent error correction. It is recommended in the paper that the demodulator perform error detection to facilitate the erasure correction in the error control coding (ECC) decoder. It is proposed that a modu... View full abstract»

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  • Nonlinear luminance compensation network for gamma corrected TV signals

    Publication Year: 1993, Page(s):806 - 815
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    Presents a novel approach for the luminance compensation problem which utilizes only the nonlinear gamma compensated components of the luminance signal. The proposed technique is based on nonlinear networks whose coefficients have been adaptively trained to perform luminance compensation. The result obtained can be easily implemented in real time, and the compensation scheme offers versatility, in... View full abstract»

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  • Performance analysis of the advanced digital HDTV video coding system

    Publication Year: 1993, Page(s):779 - 788
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    Advanced digital high definition television (AD-HDTV) is an all-digital simulcast system designed to provide high-quality HDTV service to a large coverage area through a single 6 MHz terrestrial broadcast `taboo' channel. The paper describes the technical details of the AD-HDTV video coding system and provides an analysis of the system performance View full abstract»

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  • Performance comparisons of the CEBus with other protocols

    Publication Year: 1993, Page(s):824 - 831
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    The CEBus has been compared to ALOHA, CSMA, and CSMA/CD media access protocols. Numerical analyses and/or simulation experiments have been used to investigate throughput and delay tradeoffs. The results of the comparisons show that the CEBus protocol with three priorities is highly efficient and well suited for its task View full abstract»

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  • A VLSI motion estimator for video image compression

    Publication Year: 1993, Page(s):837 - 846
    Cited by:  Papers (6)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (588 KB)

    The authors present a VLSI motion estimator based on the full-search block-matching algorithm (FSBMA) for video image compression. To improve the performance, a novel two-dimensional SIMD-systolic architecture has been derived. Currently, based on a 0.8 μm CMOS technology, a VLSI chip has been implemented and fabricated for such an architecture. The chip is functionally correct and packaged as ... View full abstract»

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  • The trustworthy digital camera: restoring credibility to the photographic image

    Publication Year: 1993, Page(s):905 - 910
    Cited by:  Papers (145)  |  Patents (203)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    The trustworthy digital camera is an application of existing technology toward the solution of an evermore-troubling social problem, the eroding credibility of the photographic image. Although it will always be possible to lie with a photograph (using such time-honored techniques as false perspective and misleading captions), this proposed device will prevent the explosion of very capable personal... View full abstract»

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  • A SIMD-systolic architecture and VLSI chip for the two-dimensional DCT and IDCT

    Publication Year: 1993, Page(s):859 - 869
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    The authors present a SIMD-systolic architecture for computing the two-dimensional discrete cosine transform (2D-DCT) and inverse discrete cosine transform (2D-IDCT). With four processing elements and a dynamic switching network, this architecture can compute 2D-DCT or 2D-IDCT for 8×8 blocks in sixty-four internal clock cycles (or 128 I/O clock cycles). Currently, based on a 0.8 μm SPDM C... View full abstract»

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  • Improved results for color error reductions using neural networks and a fast training algorithm

    Publication Year: 1993, Page(s):923 - 927
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    In a previous paper by Xu and Crilly (see ibid., vol. 39, p. 630, August 1993), neural networks were able to correct color errors in television receivers. The results showed that 70% of these errors were reduced by various amounts. This paper further investigates the use of neural networks for error reduction. A simpler network is employed in conjunction with a fast training algorithm. The new res... 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