Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate
2007-03-20
2007-03-20
An, Meng-Al T. (Department: 2193)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
C708S200000
Reexamination Certificate
active
10617494
ABSTRACT:
The invention is a Gray code counter that uses a carry chain to determine the state of each bit of the counter. An additional bit that toggles at every clock is used to originate the carry chain, and to determine the counter direction. Then, a generic Gray count bit module is used to process the carry and count chain for each bit of the counter. Special consideration is given to the first and last bits of the counter to ensure correct termination and reset of the counter. A one bit gray code generic module is described such that a scalable counter can be generated recursively.
REFERENCES:
patent: 3349332 (1967-10-01), Bleickardt
patent: 3588461 (1971-06-01), Haisall
patent: 4519091 (1985-05-01), Chu et al.
patent: 4780894 (1988-10-01), Watkins et al.
patent: 4937845 (1990-06-01), Warner
patent: 5045854 (1991-09-01), Windmiller
patent: 5084841 (1992-01-01), Williams et al.
patent: 5164968 (1992-11-01), Otto
patent: 5191425 (1993-03-01), Hachiyama et al.
patent: 5426756 (1995-06-01), Shyi et al.
patent: 5428654 (1995-06-01), Baqai
patent: 5960468 (1999-09-01), Paluch
patent: 5987574 (1999-11-01), Paluch
patent: 6084935 (2000-07-01), Mather
patent: 6337893 (2002-01-01), Pontius
patent: 6359897 (2002-03-01), Hessel et al.
patent: 6400735 (2002-06-01), Percey
patent: 6434642 (2002-08-01), Camilleri et al.
patent: 6457114 (2002-09-01), Paluch
patent: 6473484 (2002-10-01), Mather
patent: 6553448 (2003-04-01), Mannion
patent: 6556645 (2003-04-01), Kim
patent: 6845414 (2005-01-01), Hsu et al.
patent: 2003/0177295 (2003-09-01), Hsu et al.
Ivo Viscor, Gray counter in VHDL, Proceedings of the Student FEI 2000, Brno 2000, pp. 399-401.
Atul et al., Trading off Reliability and Power-Consumption in Ultra-Low Power Systems, IEEE, Proceedings of the International Symposium on Quality Electronic Design, 2002, pp. 1-6.
Jian et al., A High-Resolution Time-to-Digital Converter Implemented in Field-Programmable-Gate-Arrays, IEEE Transactions on Nuclear Science, vol. 53, No. 1, Feb. 2006, pp. 236-241.
Robert et al., 32-Channel Digital 6-bit TDC with 2.5 ns Least Count, IEEE Transactions on Nuclear Science, vol. 36, No. 1, Feb. 1989, pp. 646-649.
An Meng-Al T.
Do Chat C.
Rogitz John L.
Sony Electronics Inc.
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