Method and apparatus for time shaped finite impulse response fil

Details Method and apparatus for time shaped finite impulse response fil Method and apparatus for time shaped finite impulse response fil

1996-05-30

1998-07-21

Ton, Dang

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

370497, H04J 110

Patent

active

057843783

ABSTRACT:
A novel finite impulse response filter apparatus and method. A multiplexed data stream composed of two or more data streams is provided as an input to a tapped delay line. Weight and sum operators are connected to the even or odd delay line taps and generate a filtered output. The filter operates on one data stream per cycle and generates a multiplexed output. In another form, odd weight and sum operates are connected to and odd taps generating two filtered outputs. The filter operates on both data streams in each cycle and generates two multiplexed outputs. A crossbar switch is disclosed for parsing the multiplexed outputs into the constituent filtered data streams. The filter stages may be cascaded.

REFERENCES:
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patent: 5398240 (1995-03-01), Nakashima et al.
patent: 5475684 (1995-12-01), Shimizu
Andre Abrial, et al. "A 27-MHz Digita-to-Analog Video Processor", IEEE Journal of Solid-State Circuits, vol. 23, No. 6, Dec. 1988.

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