Steven R Sharp

US Patent:

7739629, Jun 15, 2010

Filed:

Oct 30, 2006

Appl. No.:

11/590657

Inventors:

Qi Wang - San Jose CA, US
Ankur Gupta - Mountain View CA, US
Pinhong Chen - Saratoga CA, US
Christina Chu - San Jose CA, US
Manish Pandey - San Jose CA, US
Huan-Chih Tsai - Saratoga CA, US
Sandeep Bhatia - San Jose CA, US
Yonghao Chen - Groton MA, US
Steven Sharp - Lowell MA, US
Vivek Chickermane - Ithaca NY, US
Patrick Gallagher - Appalachian NY, US

Assignee:

Cadence Design Systems, Inc. - San Jose CA

International Classification:

G06F 17/50

US Classification:

716 4, 716 2, 716 7, 703 14

Abstract:

A method of adding power control circuitry to a circuit design at each of an RTL and a netlist level comprising: demarcating multiple power domains within the circuit design; specifying multiple power modes each power mode corresponding to a different combination of on/off states of the multiple demarcated power domains; and defining isolation behavior relative to respective power domains.

US Patent:

8516422, Aug 20, 2013

Filed:

Jun 14, 2010

Appl. No.:

12/815239

Inventors:

Qi Wang - San Jose CA, US
Ankur Gupta - Mountain View CA, US
Pinhong Chen - Saratoga CA, US
Christina Chu - San Jose CA, US
Manish Pandey - San Jose CA, US
Huan-Chih Tsai - Saratoga CA, US
Sandeep Bhatia - San Jose CA, US
Yonghao Chen - Groton MA, US
Steven Sharp - Lowell MA, US
Vivek Chickermane - Ithaca NY, US
Patrick Gallagher - Appalachian NY, US

Assignee:

Cadence Design Systems, Inc. - San Jose CA

International Classification:

G06F 17/50

US Classification:

716109, 716111, 716120, 716123, 716133, 716127, 716136, 703 16

Abstract:

A method for implementing a single file format for power-related information for an IC comprising: providing a circuit design in at least one design file in a non-transitory computer readable storage device; providing power-related design information in a file in the computer readable storage device that is separate from the at least one design file and that specifies multiple power domains within the circuit design, each power domain including one or more design object instances from within the circuit design and that specifies multiple power modes each power mode corresponding to a different combination of on/off states of the multiple specified power domains and that specifies isolation behavior relative to respective power domains; and using a computer to add power control circuitry to the circuit design that implements the power domains and power modes and isolation behavior specified in the power specification information.

US Patent:

RE44479, Sep 3, 2013

Filed:

Jun 12, 2012

Appl. No.:

13/494363

Inventors:

Qi Wang - San Jose CA, US
Ankur Gupta - Mountain View CA, US
Pinhong Chen - Saratoga CA, US
Christina Chu - San Jose CA, US
Manish Pandey - San Jose CA, US
Huan-Chih Tsai - Saratoga CA, US
Sandeep Bhatia - San Jose CA, US
Yonghoa Chen - Groton MA, US
Steven Sharp - Lowell MA, US
Vivek Chickermane - Ithaca NY, US
Patrick Gallagher - Appalachian NY, US
Mitchell W. Hines - San Jose CA, US

Assignee:

Cadence Design Systems, Inc. - San Jose CA

International Classification:

G06F 17/50

US Classification:

716105, 716102, 716103, 703 14

Abstract:

A method of adding power control circuitry to a circuit design at each of an RTL and a netlist level comprising: demarcating multiple power domains within the circuit design; specifying multiple power modes each power mode corresponding to a different combination of on/off states of the multiple demarcated power domains; and defining isolation behavior relative to respective power domains.

US Patent:

52313123, Jul 27, 1993

Filed:

Mar 12, 1992

Appl. No.:

7/850285

Inventors:

Geoffrey S. Gongwer - San Jose CA
Jinglun Tam - Milpitas CA
Keith H. Gudger - Sunnyvale CA
Joe Yu - Palo Alto CA
Steven A. Sharp - Los Gatos CA

Assignee:

Atmel Corporation - San Jose CA

International Classification:

H03K 19177

US Classification:

307465

Abstract:

An integrated circuit package including a plurality of macrocells for connecting a logic circuit of the package to a plurality of external contacts of the package. At least one of the macrocells has an output driver that is enabled or disabled by a control signal for transmitting or preventing transmission of a logic signal to one of the contacts. The control signal is generated by a logic gate that receives and logically combines an individual output enable signal dedicated to that particular macrocell with a selected signal. One signal that may be selected is a regional output enable signal that is supplied to more than one macrocell. Each macrocell also has a feedback multiplexer selecting one signal to be sent to the logic circuit. Choices include a nonstored logic signal, a stored logic signal from a flip-flop register in the macrocell, a signal applied to the external contact associated with that macrocell, and a signal applied to another external contact associated with a different macrocell. A plurality of contacts are connected to feedback multiplexers in two different macrocells, and at least one contact connects in this manner to separate logic regions of the logic circuit.