Wave transmission lines and networks – Automatically controlled systems – With control of equalizer and/or delay network
Patent
1991-07-03
1993-10-12
Lee, Benny
Wave transmission lines and networks
Automatically controlled systems
With control of equalizer and/or delay network
333166, 375 12, 36472416, 3647242, H03H 1500, H04B 314
Patent
active
052529320
ABSTRACT:
A waveform equalizing filter unit includes a waveform equalizing filter with a plurality of taps each having a unitary delay element and a coefficient multiplier, a clock switching circuit for selecting a clock signal from at least two different frequencies, with the selected clock signal being fed to each of the unitary delay elements of the waveform equalizing filter, and a control circuit for selectively switching the tap coefficients of the coefficient multiplier in the waveform equalizing filter based upon which one of the different clock signals has been selected. A signal time adjuster is further included in a stage situated before the waveform equalizing filter that receives the input signal prior to being fed to the waveform equalizing filter to adjust the timing of the input signal in synchronism with the operation of selecting one of the different clock signal frequencies.
REFERENCES:
patent: 3715666 (1973-02-01), Mueller et al.
patent: 4403245 (1983-09-01), Wischermann
patent: 4524424 (1985-06-01), White
patent: 4607377 (1986-08-01), Atobe et al.
patent: 4759035 (1988-07-01), McGary et al.
patent: 5048055 (1991-09-01), Creigh et al.
patent: 5050186 (1991-09-01), Gurcan et al.
Komoda Masahiro
Someya Ikuo
Eslinger Lewis H.
Lee Benny
Maioli Jay H.
Sony Corporation
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