Pulse or digital communications – Synchronizers
Reexamination Certificate
2006-06-26
2008-08-05
Ghebretinsae, Temesghen (Department: 2611)
Pulse or digital communications
Synchronizers
C375S316000, C375S357000, C370S503000
Reexamination Certificate
active
07409023
ABSTRACT:
A method for effecting synchronous pulse generation for use in serial communications is provided. The method includes the steps of generating a difference signal representing a signal level difference between at least two data stream signals; providing a clock signal; providing a counter, defining a sample count value of the counter; incrementing the counter in relation to the clock signal; and determining whether a current count value of the counter corresponds to the sample count value. If the current count value corresponds to the sample count value, then the method performs a step of generating a synchronous pulse. If the current count value does not correspond to the sample count value, then the method performs a step of determining whether a signal level of said difference signal has changed, and if the signal level of the difference signal has changed then performing a step of ignoring further changes in the signal level of the difference signal until the current count value of the counter corresponds to the sample count value at which time the step of generating the synchronous pulse is repeated.
REFERENCES:
patent: 3609662 (1971-09-01), Grimm
patent: 3938082 (1976-02-01), Schowe, Jr.
patent: 4280099 (1981-07-01), Rattlingourd
patent: 4280221 (1981-07-01), Chun et al.
patent: 5072407 (1991-12-01), Gutz et al.
patent: 5444743 (1995-08-01), Scarpa
patent: 5594763 (1997-01-01), Nimishakavi
patent: 5689533 (1997-11-01), Brauns et al.
patent: 5696777 (1997-12-01), Hofsaess
patent: 5809091 (1998-09-01), Barrow
patent: 5845152 (1998-12-01), Anderson et al.
patent: 5910742 (1999-06-01), Synder et al.
patent: 5923193 (1999-07-01), Bloch et al.
patent: 5958020 (1999-09-01), Evoy et al.
patent: 5958027 (1999-09-01), Gulick et al.
patent: 5982837 (1999-11-01), Earnest
patent: 6169501 (2001-01-01), Ryan
patent: 6226345 (2001-05-01), Skergan
patent: 6247082 (2001-06-01), Lo et al.
patent: 6247083 (2001-06-01), Hake et al.
patent: 6359946 (2002-03-01), Ryan
patent: 6370603 (2002-04-01), Silverman et al.
patent: 6700943 (2004-03-01), Miller
patent: 7139344 (2006-11-01), Crutchfield et al.
IEEE 100: the authoritative dictionary of IEEE standards terms. Author: IEEE; Imprint: New York: IEEE Press, 2000 pp. 302 and 304.
Universal Serial Bus Specification, Sep. 23, 1998, Revision 1.1 pp. 17, 117, 124-126, 171-172, 274.
Implementation of serial port interconnections for integrated circuits; Samady, M.R. et al: Microelectronics, 1999. ICM '99. The Eleventh International Conference on Nov. 22-24, 1999 pp. 291-294.
Draft Standard For a High Performance Serial Bus (Supplement); P1394b Draft 1.11; Mar. 27, 2001 ; IEEE; pp. 21, 33-53; 94-110; 139-168; 243-280; 381-382.
USB VS Fire Wire; Katherine M. Henry; http://e-redlands.uor.edu/M.../USB%20and%20Fire%20Wire3.ht; 2001; pp. 1-3.
3 V 1 Port IEEE 1394-1995 Cable Transceiver/Amplifier TSB11LVO1, Texas Instruments: 1997; pp. 1-20.
Standards IEEE 1394: Changing the Way We Do Multimedia Communications; Peiya Lu et al, IEEE Multimedia, Apr.-Jun. 2000; vol. 7, No. 2, http://computer.org/multimedia/articles/firewire.htm; pp. 1-16.
dIEEE—1394: A Standard For The Next Millenium; Santamaria, R., IEEE Digital Avionics Conference, Oct. 24-29, 1999, vol. 1 pp. 1.c.2-1-1.c.2-7.
Crutchfield David Allen
Rademacher Timothy John
Rasche Galen Arthur
Ghebretinsae Temesghen
Lexmark International Inc
Taylor & Aust PC
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