Design of instantaneously restartable clocks and their use...

Details Design of instantaneously restartable clocks and their use... Design of instantaneously restartable clocks and their use...

2007-07-10

2007-07-10

Trujillo, James K. (Department: 2116)

Electrical computers and digital processing systems: support

Clock control of data processing system, component, or data...

C171S055000, C171S055000, C171S055000

Reexamination Certificate

active

11526376

ABSTRACT:
Disclosed are, inter alia, instantaneously restartable clocks and their use. For example, instantaneously restartable clocks can be used to receive data from another independently clocked subsystem in a manner that removes the possibility of metastability errors. A restartable clocking signal generator, relying on oscillating signals typically generated by a continuous oscillating source, is used to generate a restartable clocking signal which can be asynchronously restarted in response to one or more control signals. In one implementation, an apparatus includes multiple independently clocked subsystems and a clockless sequencing network, with the clockless sequencing network being used to initiate the start of a restartable clock in order to reliably receive and process data between the independently clocked subsystems.

REFERENCES:
patent: 4977581 (1990-12-01), Cerminara
patent: 5428765 (1995-06-01), Moore
patent: 6304979 (2001-10-01), Bacigalupo
patent: 2002/0190774 (2002-12-01), Manganaro
patent: 2005/094555 (2005-10-01), None
Shuo-Yuan Hsiao and Chung-Yu Wu, “A Parallel Structure for CMOS Four-Quadrant Analog Multipliers and Its Application to a 2-GHz RF Downconversion Mixer,” IEEE Journal of Solid-State Circuits, vol. 33, No. 6, Jun. 1998, pp. 859-869.
Jerome R. Cox, Jr., “Can a Crystal Clock Be Started and Stopped?”, Applied Mathematics Letters, vol. 1, Issue 1, 1988, pp. 37-40.
C. Mead and L. Conway, Introduction to VLSI Systems, Addison-Wesley, pp. 234-235 and pp. 258-259, 1980.
Jerome R. Cox, Jr. and David M. Zar, “Synthesis of Control Elements from Petri Net Models,” WUSEAS-2005-43, Washington University, St. Louis, MO, Sep. 16, 2005.

Affiliated with

Also associated with

Rating

Design of instantaneously restartable clocks and their use... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Design of instantaneously restartable clocks and their use..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Design of instantaneously restartable clocks and their use... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3757662