United States Patent 6,922,091
Kizer Kizer, July 26, 2005
Locked loop circuit with clock hold function.
Abstract
A locked loop circuit having a clock hold function. The locked loop circuit includes a select circuit, phase mixing circuit, hold signal generator and latch circuit. The select circuit selects one of a plurality of phase values in response to a select signal, and the phase mixing circuit generates a first clock signal having a phase angle according to the selected phase value. The hold signal generator asserts a hold signal in response to a transition of the select signal, and the latch circuit latches the state of the first clock signal in response to assertion of the hold signal.
Inventors: Kizer; Jade M. (Mountain View, CA)
Assignee: Rambus Inc. (Los Altos, CA)
Appl. No.: 374615
Filed: February 25, 2003
United States Patent 6,922,092
Stark, et al., July 26, 2005
Impedance controlled output driver.
Abstract
An output driver has an output multiplexor and an output current driver. The output multiplexor receives a data signal and outputs a q-node signal. The output current driver receives the q-node signal and drives a bus based on the q-node signal. The output multiplexor processes the data signal in various ways to generate the q-node signal. The output current driver is responsive to current control bits to select a amount of output drive current. In addition, the output multiplexor is controlled such that the output impedance of the output current driver is maintained within a predetermined range.
Inventors: Stark; Donald C. (Palo Alto, CA); Kim; Jun (Redwood City, CA); Knorpp; Kurt T. (San Carlos, CA); Ching; Michael Tak-Kei (Sunnyvale, CA); Kushiyama; Natsuki (Yokohama, JP)
Assignee: Rambus Inc. (Los Altos, CA)
Appl. No.: 731718
Filed: December 8, 2003
Hat tip to FitzToRite of the Pinehurst Thread for the weekly patent search and email with links.
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2 comments:
Thanks to "TREOWTH" for all of your comprehensive posting of what is of interest in the matter of RMBS.
While I visit 2 message boards regarding RMBS, neither of them offers 'diddly squat' for the most part. I find it necessary to 'ignore user' again and again......I am now at the place and time where on "Yahoo" - the 'ignored ones' appear again. Something is full. LOL Of what, you might ask.... go figure.
Again thank you "TREOWTH", and to ALL of the "Pinehurst Thread".
Truly appreciated.
Thank you for reading and the kind words.
Again, much of Treowth is compiled from emails, links, conversations with Ramboids, anti-Ramboids, tech industry employees and observers.
Hat tip to those who contribute that I acknowledge and those who provide background and wish to remain anonymous.
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