Invention Grant
- Patent Title: High-speed leaf clock frequency-divider/splitter
- Patent Title (中): 高速叶片时钟分频器/分路器
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Application No.: US11623893Application Date: 2007-01-17
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Publication No.: US07915929B2Publication Date: 2011-03-29
- Inventor: Steven Michael Douskey , Matthew Roger Ellavsky
- Applicant: Steven Michael Douskey , Matthew Roger Ellavsky
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Dillon & Yudell LLP
- Main IPC: H03B19/00
- IPC: H03B19/00

Abstract:
A novel clock splitter that has a local internal clock frequency-divider is presented. The clock splitter comprises an oscillator clock splitter, wherein the oscillator clock splitter splits an oscillator clock signal into a B clock and a C clock; a clock frequency-divider, wherein the clock frequency-divider selectively suppresses clock pulses in the C clock to generate a slower C clock signal that is slower than the oscillator clock; and a B/C clock order logic, wherein the B/C clock order logic phase shifts the C clock relative to a B clock. The clock frequency-divider may selectively suppress pulses in the B clock to generate a slower B clock signal. The slower B and C clock signals may have a same or different frequency. In one embodiment, the clock splitter is located at a terminal leaf of a clock tree.
Public/Granted literature
- US20080169848A1 High-Speed Leaf Clock Frequency-Divider/Splitter Public/Granted day:2008-07-17
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