By Topic

IEE Proceedings G - Circuits, Devices and Systems

Issue 5 • Date Oct. 1993

Filter Results

Displaying Results 1 - 10 of 10
  • Graphical block-diagram based programming environment for a DSP silicon compiler

    Publication Year: 1993, Page(s):313 - 318
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (473 KB)

    The paper presents a graphical block-diagram based programming tool, which is a new software development system for digital signal processing (DSP). This system provides a block-diagram editor; therefore, the DSP system can be easily built by connecting functional blocks as described in the signal-flow graph. A block library is set up, which includes basic signal processing functions and some freq... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Insensitive voltage-mode and current-mode filters from commercially available transimpedance opamps

    Publication Year: 1993, Page(s):319 - 321
    Cited by:  Papers (20)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (265 KB)

    New voltage-mode and current-mode filters implemented from a single commercially available transimpedance operational amplifier are described. The circuits, which exhibit simultaneously two transfer functions (bandpass and lowpass/highpass), are insensitive to active and passive component variations. The author also demonstrates that transimpedance amplifiers including a compensation pin are much ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Improved parallel realisation of IIR adaptive filters

    Publication Year: 1993, Page(s):322 - 328
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (482 KB)

    A frequency-domain adaptive-filter realisation which uses a parallel arrangement of real second-order IIR sections and preprocessing based on a real orthogonal transform is examined. Experimental results and simulations show that the proposed scheme leads to increased convergence rates and lower computational complexity. The paper also deals with an efficient technique for optimising the convergen... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Power digital to analogue conversion using pulse width modulation and digital signal processing

    Publication Year: 1993, Page(s):329 - 338
    Cited by:  Papers (7)  |  Patents (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (823 KB)

    The combination of digital pulse width modulation and oversampled noise shaping is proposed for high quality digital to analogue conversion. High resolution, linearity and efficiency are achieved by converting directly to analogue audio, using class D amplification. Digital signal processing is used to reduce quantisation noise and harmonic distortion at signal frequencies up to 20 kHz. High effic... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Algorithms for operation scheduling in VLSI circuit design

    Publication Year: 1993, Page(s):339 - 346
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (695 KB)

    The problem of automatically obtaining the layout of a circuit starting with a purely behavioural specification has been receiving growing attention during the last few years. Several reasons explain this interest, but the main one is the great amount of computing power that can now be integrated in a single device. Modern microelectronic technology allows the realisation in a small area of a grea... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Probability, graphs and electrical networks

    Publication Year: 1993, Page(s):347 - 354
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (653 KB)

    Explicit forms are presented for the probability that a random tree in a graph G contains any logically expressed set of edges, given that it contains any other logically expressed set of edges. Edge sets may be included or excluded, and may appear in a logical union or intersection. This probability is expressed in terms of various readily calculated or measured resistance values in a resistive e... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Efficient computational procedure for the design of FIR digital filters using WLS technique

    Publication Year: 1993, Page(s):355 - 359
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (334 KB)

    The design of an FIR filter using the weighted least-squares (WLS) technique involves solving a Toeplitz matrix problem. However, if the requirement that the impulse response of the filter must be exactly symmetrical is imposed, the matrix becomes non-Toeplitz. The authors point out that it is Toeplitz-plus-Hankel, and present a method with complexity O(N/sup 2/) for solving the WLS problem. As ex... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Efficient output phase assignment algorithm for PLAs

    Publication Year: 1993, Page(s):360 - 366
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (521 KB)

    To implement a multiple output function, one has the option to realise each output with either true logic or complementary logic following with an inverter. This paper, proposes an efficient algorithm to solve this output phase assignment problem for PLA implementation. Instead of using the double-phase cover minimisation approach, a property-checking procedure is used to estimate the cost of assi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Electronically tunable filtering networks: theory, analysis and simulation

    Publication Year: 1993, Page(s):367 - 372
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (422 KB)

    A parallel four-port tunable conductance-susceptance network model is proposed for use in tunable filtering networks, with emphasis on its modelling, sensitivity minimising and computer simulation. In contrast with the design of tunable transfer functions in the complex domain, we synthesise a four-port linear and controllable conductance network in the real domain, which is easier to implement wi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Effect of irradiation and annealing conditions on power transistor performance

    Publication Year: 1993, Page(s):373 - 376
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (361 KB)

    It is shown that to simultaneously achieve requirements of dynamic (storage time) and static (on-resistance, peak drain current) power transistor characteristics, an irradiation/anneal processing cycle may be used. This includes annealing at a temperature range limited by the thermal stabilities of the A-centres and divacancies (i.e. 300-380 degrees C). The irradiation flux by high energy electron... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.