Movable tap finite impulse response filter

Details Movable tap finite impulse response filter Movable tap finite impulse response filter

2006-10-10

2006-10-10

Mai, Tan V. (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S322000

Reexamination Certificate

active

07120656

ABSTRACT:
A Finite Impulse Response (FIR) filter is provided including a coefficient generator to generate first and second coefficients, a first control conductor, and a second control conductor. A controller is coupled to a first end of the first control conductor and a first end of the second control conductor. A shared wiring is provided having its first end coupled to the coefficient generator. A first memory is coupled to a second end of the shared wiring and coupled to a second end of the first control conductor to store the first coefficient in response to the controller. A first multiplier is responsive to the first coefficient stored in the first memory and the input, and a first delay circuit is responsive to an input. A second memory is coupled to the second end of the shared wiring and coupled to a second end of the second control conductor to store the second coefficient in response to the controller, and a second multiplier is responsive to the second coefficient stored in the second memory and the first delay element.

REFERENCES:
patent: 3665171 (1972-05-01), Morrow
patent: 3703632 (1972-11-01), Shanks
patent: 4344149 (1982-08-01), van de Meeberg et al.
patent: 4488251 (1984-12-01), Wischermann
patent: 5050119 (1991-09-01), Lish
patent: 5119326 (1992-06-01), Cochran et al.
patent: 5212660 (1993-05-01), Orihara
patent: 5222035 (1993-06-01), Nakase et al.
patent: 5235538 (1993-08-01), Sumi et al.
patent: 5388062 (1995-02-01), Knutson
patent: 5535150 (1996-07-01), Chiang
patent: 5777910 (1998-07-01), Lu
patent: 6035320 (2000-03-01), Kiriaki et al.
patent: WO 46867 (1999-09-01), None
“An Adaptive Multiple Echo Canceller for Slowly Time Varying Echo Paths”, Yip and Etter, IEEE Transactions on Communications, Oct. 1990.
“Digital Signal Processing”, Alan V. Oppenheim et al., pp. 155-163.
“A 100 MHz Output Rate Analog-to-Digital Interface for PRML Magnetic-Disk Read Channels in 1.2 um CMOS”, Gregory T. Uehara and Paul R. Gray, ISSCC94/Session 17/Disk-Drive Electronics/Paper FA 17.3, 1994 IEEE International Solid-State Circuits Conference, pp. 280-281.
“72Mb/s PRML Disk-Drive Channel Chip with an Analog Sampled Data Signal Processor”, Richard G. Yamasaki et al., ISSCC94/Session17/Disk-Drive Electronics/Paper FA 17.2, 1994 IEEE International Solid State Circuits Conference, pp. 278-279.
“A Discrete-Time Analog Signal Processor for Disk Read Channels”, Ramon Gomez et al., ISSCC93/Session 13/Hard Disk and Tape Drives/Paper FA 13.1, 1993 ISSCC Slide Supplement, pp. 162-163 and 279-280.
“A 50 MHz 70 mW 8-Tap Adaptive Equalizer/Viterbi Sequence Detector in 1.2 um CMOS”, Gregory T. Uehara et al., 1994 IEEE Custom Integrated Circuits Conference, pp. 51-54.

Affiliated with

Also associated with

Rating

Movable tap finite impulse response filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Movable tap finite impulse response filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Movable tap finite impulse response filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3713695