High speed filter

Details High speed filter High speed filter

2011-08-16

2011-08-16

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical analog calculating computer

Particular function performed

C708S005000

Reexamination Certificate

active

08001172

ABSTRACT:
An electronic filter operates as a correlator that provides a discrete approximation of an analog signal. The analog to digital conversion is integrated directly approximation calculation. An array of sample and hold circuits or single bit comparators provide outputs to a series of multipliers, the other input of which is a coefficient value of a Fourier series approximation of the desired frequency response. Each of the sample and hold circuits samples sequentially in time and holds its sample until the next cycle. Thus the sample point rotates in time through the array and each new sample is multiplied by a different coefficient. The output of the multipliers is summed for evaluation.

REFERENCES:
patent: 4103333 (1978-07-01), Poirier et al.
patent: 4161033 (1979-07-01), Martinson
patent: 4318080 (1982-03-01), Yoshida et al.
patent: 4403331 (1983-09-01), Halpern et al.
patent: 4475170 (1984-10-01), Haque
patent: 4550415 (1985-10-01), Debus, Jr. et al.
patent: 4580224 (1986-04-01), Gerber
patent: 4667203 (1987-05-01), Counselman, III
patent: 4860018 (1989-08-01), Counselman, III
patent: 4870422 (1989-09-01), Counselman, III
patent: 5014327 (1991-05-01), Potter et al.
patent: 5021793 (1991-06-01), Stangel et al.
patent: 5027116 (1991-06-01), Armstrong et al.
patent: 5168213 (1992-12-01), Wardle et al.
patent: 5194871 (1993-03-01), Counselman, III
patent: 5353026 (1994-10-01), Wilson
patent: 5384574 (1995-01-01), Counselman, III
patent: 5438532 (1995-08-01), Nagao et al.
patent: 5463657 (1995-10-01), Rice
patent: 5469469 (1995-11-01), Haines
patent: 5537435 (1996-07-01), Carney et al.
patent: 5563819 (1996-10-01), Nelson
patent: 5754603 (1998-05-01), Thomas et al.
patent: 5901075 (1999-05-01), Offord et al.
patent: 5914983 (1999-06-01), Bowser et al.
patent: 5999561 (1999-12-01), Naden et al.
patent: 6032171 (2000-02-01), Kiriaki et al.
patent: 6111911 (2000-08-01), Sanderford, Jr. et al.
patent: 6141373 (2000-10-01), Scott
patent: 6154486 (2000-11-01), Scott et al.
patent: 6718355 (2004-04-01), Felts, III et al.
patent: 0078674 (1983-05-01), None
patent: 0903863 (1999-03-01), None
patent: 52-94051 (1977-08-01), None
K. Muhammed, et. al., A Discrete-Time Bluetooth Receiver in a 0.13 m Digitial CMOS Process, 2004 ISSCC, Session 15, Wireless Consumer ICs Texas Instruments, Dallas TX.
N.I. Kaushanskiy “Synthesis of Frequency Characteristics by Means of a Tapped Delay Line” Telecommunications and Radio Engineering, Sep. 1967, pp. 80-86.
European Search Report dated Mar. 24, 2009 for a corresponding European Application No. 02709164.4.

Affiliated with

Also associated with

Rating

High speed 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 High speed filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High speed filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2659455