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Consumer Electronics, IEEE Transactions on

Issue 1 • Date Feb 1988

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Displaying Results 1 - 25 of 29
  • Direct-view and projection CRTs for HDTV

    Publication Year: 1988 , Page(s): 91 - 99
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (580 KB)  

    A series of direct-view and projection type CRTs has been developed for high-definition TV (HDTV) use. The technical aspects of direct-view 40-in and 30-in CRTs and projection 7-in and 12-in CRTs are described. The direct-view CRTs have an aspect ratio of 5:3 and a resolution of more than 1000 TV lines. With the fine and uniform pictures displayed over the entire screen, the CRTs are suitable for studio monitors and are also expected to be used for home TV sets. The projection CRTs have been developed for displaying picture size larger than 40 in. With the 7-in projection CRT, a resolution of 1000 TV lines and a peak brightness of 120 ft-L have been realized on a 50-in projection screen. With the 12-in CRT a 180 in projection screen with a peak brightness of 15 ft-L, about twice as high as a conventional CRT, has been realized View full abstract»

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  • 16:9 aspect ratio 38V-high resolution trinitron CRT for HDTV

    Publication Year: 1988 , Page(s): 85 - 90
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (324 KB)  

    The development and characteristics of a 38-in (vertical) tube for high-definition television (HDTV) are discussed. Design details are given for the glass vacuum tube, the aperture grill and phosphor screen, and the electron gun and deflection yoke. The characteristics of the cathode-ray tube and display monitor are examined View full abstract»

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  • Display and projection devices for HDTV

    Publication Year: 1988 , Page(s): 100 - 110
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (668 KB)  

    A 50 in rear projection display for consumer use and a 180 in front projection display for video theatres and other extra-large display applications are discussed. The 50 in display uses an optical coupling system. The contrast ratio has been more than doubled to a level approximately equivalent to that of a CRT, and resolution has been increased, owing to improvements in the screen, to 1000 TV lines. The TV set depth is 65 cm as a result of a reduced projection distance, and peak luminance is 120 ft-L, double that of conventional designs. For the 180 in display the development of a 12 in liquid-cooled projection tube allows high beam current loading, providing a light output approximately twice that of conventional designs and realizing a peak luminance of 15 ft-L, equivalent to that of a movie screen. Its contrast ratio has also been greatly improved with the optical coupling system. The projection lens is also newly developed and is compatible for use with 150 in to 250 in screens View full abstract»

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  • An experimental color-under VCR for IDTV/EDTV system

    Publication Year: 1988 , Page(s): 228 - 235
    Cited by:  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (612 KB)  

    An experimental color-under VCR for improved-definition TV/enhanced-definition TV (IDTV/EDTV) systems which can record and reproduce the full NTSC-bandwidth TV signal has been developed. To be adaptable for IDTV/EDTV systems, the VCR should have a full NTSC bandwidth (4.2 MHz) and standard NTSC output (without skew and jitter). In current VCRs the bandwidth of the reproduced signal is not generally sufficient to meet above requirement. Improvement has been achieved by reproducing the high-frequency luminance signal included in the color-under chrominance signal without any amplitude and phase distortion, providing full NTSC video bandwidth without any time base error. A 330-line-resolution picture has been obtained with an IDTV set View full abstract»

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  • A VLSI median filter for impulse noise elimination in composite or component TV signals

    Publication Year: 1988 , Page(s): 262 - 267
    Cited by:  Papers (19)  |  Patents (4)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (480 KB)  

    A VLSI median filter with novel masking modes and adaptive threshold control is described. The 16 masking modes select 1, 3, 5 or 9 pixels of a 5×3 pixel field for filtering. This feature makes it possible to median-filter NTSC composite video (baseband) or component R, G, and B signals. The input threshold value and the SWAP signal (indicating substitution of the median value) can be used together to adapt transmission path conditions. The circuit removes impulsive noise caused by FM-carrier-to-noise degradation, common in cable and satellite TV systems. The filter is applicable to other impulse noise sources created by auto engines and household appliances, and is also generally useful in image and signal processing tasks View full abstract»

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  • High definition MAC: the compatible route to HDTV

    Publication Year: 1988 , Page(s): 61 - 63
    Cited by:  Papers (1)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (264 KB)  

    The current discussion on standards for high definition television has concentrated on the studio standard to be used for picture generation. The situation is analyzed from the opposite end of the TV chain, considering the needs of the viewer. The latest developments in this respect within the Eureka Project EU-95 on high-definition television (HDTV) are highlighted. The HDTV display and two transmission coding schemes are discussed. The system selected for 1988 demonstration is described View full abstract»

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  • A component codec and line multiplexer

    Publication Year: 1988 , Page(s): 156 - 165
    Cited by:  Papers (1)  |  Patents (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (816 KB)  

    A research prototype for a 90 Mb/s component codec and line multiplexer/demultiplexer has been built to study the practical problems associated with its design and to demonstrate its use in a high-bandwidth, fiber-guide environment. The codec has substantially better than NTSC quality since NTSC artifacts are not present, and chrominance as well as luminance bandwidths exceed that of the composite picture that is currently delivered to the home. The multiplexer, demultiplexer, and clock recovery circuitry have been realized. Three channels can be asynchronously multiplexed up to the fourth-order CCITT rate of 139.264 MHz. Each channel can carry either video/audio information or a DS3 channel. In the present system, two of the channels are used to carry the total signal and the third channel is unoccupied View full abstract»

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  • Multidimensional interpretation of NTSC encoding and decoding

    Publication Year: 1988 , Page(s): 179 - 193
    Cited by:  Papers (3)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (796 KB)  

    NTSC color encoding and decoding are analyzed in spatiotemporal frequency space. The mapping of important 1-D electrical frequencies, such as the color subcarrier, into 3-D space is discussed. Spatiotemporal frequencies that contribute to cross-color and cross-luma artifacts become readily apparent in the 3-D spectral domain. The use of matched pre- and postfilters to decrease and theoretically eliminate luma/chroma crosstalk is discussed. Lowpass/bandpass, line-comb, and field-comb implementations are examined View full abstract»

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  • Advanced television systems

    Publication Year: 1988 , Page(s): 1 - 15
    Cited by:  Papers (8)  |  Patents (4)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1224 KB)  

    The NTSC television system, improved NTSC, component systems, and the 1125/60 high-definition television (HDTV) studio system, are reviewed. Proposals for transmitting HDTV programs to the public are examined, and some general comparisons among them are made View full abstract»

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  • NTSC Y/C separation and enhancement technique with two dimensional adaptive features

    Publication Year: 1988 , Page(s): 194 - 204
    Cited by:  Papers (1)  |  Patents (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (864 KB)  

    A previously reported two-dimensional adaptive Y/C separation and picture enhancement technique is improved. One mode of filtering has been added to selected picture areas in which picture degradations were observed. The lack of sharpness in picture details and picture degradation because of an incorrect choice of filter characteristics have been remedied. The investigation was carried out through computer simulations and hardware implementation View full abstract»

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  • Decoding issues in the ACTV system

    Publication Year: 1988 , Page(s): 111 - 120
    Cited by:  Papers (8)  |  Patents (21)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (980 KB)  

    The advanced compatible television (ACTV) system is a proposal for the single-channel transmission of widescreen enhanced-definition television (EDTV) images. A widescreen high-definition source is encoded into a signal that is NTSC-compatible. Existing NTSC receivers display a selected 4:3 portion of the widescreen image with standard NTSC resolution. A new widescreen receiver is proposed, tuned to the same 6 MHz RF channel, that displays a widescreen image with a resolution in excess of 400 lines/picture height in both spatial dimensions. The encoding process is reviewed and the recovery of various signal components to produce the widescreen image in the ACTV receiver is discussed View full abstract»

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  • Two channel FM recording for high-definition baseband signals

    Publication Year: 1988 , Page(s): 78 - 84
    Cited by:  Papers (2)  |  Patents (10)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (476 KB)  

    The two-channel three-segment recording method previously developed for high-definition TV (HDTV) baseband VCR recording is considered. The following aspects of this recording method are investigated: the determination of appropriate FM allocation that matches the characteristics of the tape-head system, the use of rotary head amplifiers and a cosine equalizer, and the correction of characteristic differences between the two channels. A signal-to-noise ratio of over 40 dB has been achieved, and the jitter and moire are imperceptible View full abstract»

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  • A matched-resolution wide aspect-ratio HDTV system

    Publication Year: 1988 , Page(s): 54 - 60
    Cited by:  Patents (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (548 KB)  

    A fully NTSC-compatible two-channel wide-aspect-ratio high-definition television (HDTV) system with equal vertical and horizontal resolutions is described. The wideband Y, I, Q components are spectrally split into low-frequency and high-frequency bands. However, only the low-frequency components are spatially split into center and edge segments. The low-frequency edge signals are NTSC encoded and decoded using the existing hardware for the compatible center signals. The proposed system produces minimal crossluminance and crosschrominance, and provides equal edge and center resolutions View full abstract»

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  • System considerations for US Advanced Television Systems

    Publication Year: 1988 , Page(s): 36 - 39
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (292 KB)  

    The issues of competition, consumer demand, technology, and the transmission environment are examined. Compatibility with the existing NTSC system is considered. It is argued that interindustry cooperation is important View full abstract»

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  • Digital processing of TV signals: system overview of a new IC solution

    Publication Year: 1988 , Page(s): 246 - 252
    Cited by:  Papers (4)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (388 KB)  

    A TV receiver that incorporates new types of integrated circuits in order to provide improved picture quality and novel features is described. The substitution of digital signal processing technology wherever possible allows highly automated production and testing that results in cost-effective production. A very important system feature is the selected clock frequency of 13.5 MHz, which is a multiple of the line frequencies used for PAL, SECAM and NTSC. The feature box, a set of three integrated circuits designed to improve video performance, is described. The 100 Hz videotext function and the digital deflection controller are examined in detail View full abstract»

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  • NTSC and beyond [TV]

    Publication Year: 1988 , Page(s): 166 - 178
    Cited by:  Papers (6)  |  Patents (11)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (816 KB)  

    An improved NTSC standard, super NTSC, which rivals HDTV image quality is proposed. The strengths and weaknesses of the NTSC standard are reviewed, and line-structure visibility and resolution images are examined. NTSC's deficiencies, namely, cross color, cross luminance, and limited chroma bandwidth are discussed. A new encoder, the 2H encoder, is presented, and the improvements it provides are described View full abstract»

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  • Multi-path equalization for NTSC video by using digital IIR filter

    Publication Year: 1988 , Page(s): 268 - 278
    Cited by:  Papers (8)  |  Patents (7)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (956 KB)  

    The multipath channel is modeled as an analog linear system with a response of complex weighted impulses of various relative delays. The effect of radio-frequency-to-baseband conversion is included. The minimum mean square error criterion is used to find a digital FIR approximation of the analog channel. The digital IIR equalization filter is selected to be the inverse of the FIR approximation; it can minimize ghost interferences with minor sacrifice of the random noise part. A simple sufficient condition for stability of the IIR deghosting filter is presented. A configurable IIR filter architecture using a crossbar network is described. A priori knowledge of the sync waveform is applied to synthesize a ghosted sync as a function of the channel parameters View full abstract»

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  • Digital video transmission and coding for the broadband ISDN

    Publication Year: 1988 , Page(s): 16 - 35
    Cited by:  Papers (13)  |  Patents (8)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1208 KB)  

    An overview of visual communication in the broadband network is presented with particular attention to the transmission aspect of full-motion video. A detailed analysis of the quality requirements for digital video transmission is provided. Some significant coding algorithms presently under investigation by international bodies are reviewed View full abstract»

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  • NTSC compatible high definition television emission system

    Publication Year: 1988 , Page(s): 40 - 47
    Cited by:  Papers (1)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (712 KB)  

    An economically attractive system for the hierarchical evolution of high-definition television (HDTV) compatible with the NTSC installed base is presented. The two emission signals of this system are described: HDMAC-60 and HDNTSC. The first, HDMAC-60, is a feeder signal for use between the program origination and program redistribution points and the direct broadcast satellite. The second, HDNTSC, is a delivery signal for high-definition terrestrial broadcast, CATV distribution and VCR plus laser video disc applications. This emission system is proposed as a means for transmitting HDTV pictures to consumers on the North American continent View full abstract»

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  • Hi-vision optical video disc

    Publication Year: 1988 , Page(s): 72 - 77
    Cited by:  Papers (2)  |  Patents (5)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (520 KB)  

    The formats of the four signals recorded on the high definition optical video disk system are discussed. The first signal is a video carrier FM-modulated with a bandwidth-compressed signal for use in HDTV broadcasting through a satellite. The second is a pilot signal for turntable motor control and jitter compensation. The other two consist of PCM stereo sound, one using time-division and the other frequency-division multiplexing. The resulting disk offers high-definition pictures and high-fidelity sound, and has a playing time of 60 minutes (total for both sides) View full abstract»

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  • Video coding for EQTV distribution with a rate of approximately 135 Mb/s

    Publication Year: 1988 , Page(s): 147 - 155
    Cited by:  Papers (1)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (828 KB)  

    Digital video coding for extended-quality television (EQTV) distribution over a broadband integrated services digital network (B-ISDN) at a payload rate of approximately 135 Mb/s is considered. The contribution signal will be either the CCIR Recommendation 601 signal or a minor modification of it to maximize horizontal resolution, and the scanning parameters will be the same as NTSC so that the same monitor can be used to display either EQTV or NTSC TV. A compatible vertical improvement can be added initially, or in the future, that will provide additional vertical resolution beyond the capability of the present NTSC TV or Recommendation 601. Several coding techniques for video distribution are presented to maximize horizontal resolution, given the above constraints. Two of these video coding techniques allow extra bandwidth by using sub-Nyquist sampling techniques together with comb filtering View full abstract»

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  • TV standard conversion with picture memories

    Publication Year: 1988 , Page(s): 236 - 245
    Cited by:  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (508 KB)  

    The signal processing part of an economical standard converter with memories, which can be introduced in analog as well as in digital surroundings, is described. The basic concepts for the converter are examined, and standard conversion in analog and digital TV is discussed. The memory structure and conversion of teletext signals are considered. Picture postprocessing is described View full abstract»

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  • Can Hollywood and HDTV be friends?

    Publication Year: 1988 , Page(s): 48 - 53
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (360 KB)  

    The author examines the reasons why electronic cinematography, which eliminated the use of film, failed to come into general use. He discusses the drawbacks of video capture and considers how they might be overcome. He indicates possible areas of use of video equipment needs, and system and support needs. The author also considers the electronic processing and manipulation of film and electronic distribution and exhibition of theatrical material View full abstract»

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  • VLSI realisations for picture in picture and flicker free television display

    Publication Year: 1988 , Page(s): 253 - 261
    Cited by:  Papers (1)  |  Patents (4)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (564 KB)  

    Two CMOS VLSI devices have been introduced which, through the combination of digital signal processing and external DRAMs, allow the display of television signals with higher quality and with more features. One device allows the simultaneous display of two independent video sources, while the other increases displayed picture quality by doubling the field display frequency to eliminate large area flicker. The second device also allows numerous extra features by manipulating both on- and off-chip memory. The devices can be combined within the same system to allow improved display quality plus an extremely wide range of additional display features View full abstract»

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  • Digital still HDTV disc system

    Publication Year: 1988 , Page(s): 64 - 71
    Cited by:  Papers (2)  |  Patents (6)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (556 KB)  

    A system is described in which an uncompressed video signal is recorded on a disk and reproduced by a disk player that is connected to a high-definition television (HDTV) processor. Although primarily intended for still picture reproduction, this system can generate a display command that adds false moving-picture effects to the reproduced image. Each still-picture frame consists of 1280×1024 active pixels. This system records the luminance signal Y and two color difference signals CW and CN as component codes. The sampling frequency is 49.68 MHz for signal Y, and 24.84 MHz for the color difference signals. These signals are quantized by 8-bit linear conversion. The reproducing system has frame memory capacity equivalent to 2048×2048 pixels, 3.2 times the quantity of data per frame. Each frame memory stores data that continues over two frames and also provides vertical frame scrolls. Since video data can be transmitted in both horizontal and vertical scanning directions, the picture can be switched from one frame to another, making a vertical or a horizontal wipe. The remaining video area of the frame memory can store split-screen data 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