Back to results
US 2007/0176625 A1Published application
Methods And Apparatus For Managing Defective Processors Through Power Gating
AssigneeSony Computer Entertainment Inc.
InventorsAtsushi Hayashi, Akiyuki Hatakeyama, Taichi Niki, Yoichi Nishino
Life of this patent
Estimating the term…
Abstract
Methods and apparatus provide for: selectively supplying a first source of power to a plurality of circuit blocks of a system using a plurality of gate circuits responsive to respective control signals provided by at least one control circuit; and providing a second source of power to operate the control circuit before the first source of power is available to the gate circuits such that the control signals are valid before such availability.
Claims22
A method, comprising:
- selectively supplying a first source of power to a plurality of circuit blocks of a system using a plurality of gate circuits responsive to respective control signals provided by at least one control circuit;
- and
- providing a second source of power to operate the control circuit before the first source of power is available to the gate circuits such that the control signals are valid before such availability.
An apparatus, comprising:
- a plurality of circuit blocks operable to produce one or more output signals in response to first operating power and one or more input signals;
- a plurality of gate circuits, each operable to selectively supply the first operating power to at least one of the circuit blocks in response to one or more respective control signals;
- and
- at least one control circuit operable to produce the control signals in response to at least second operating power,
- wherein the second operating power is provided to the control circuit before the first operating power is available to the gate circuits such that the control signals are valid before such availability.
2 more elements
Dependencies are inferred from the claim text.