Power controller
First Claim
1. A power controller for use in a local device having a plurality of functional blocks and that is connected to a bus connection network, the power controller performing power control in accordance with a power control command transmitted from an external device connected to the bus connection network, the power controller comprising:
- a command transmitting/receiving section which receives the power control command from the external device and which transmits a response from the local device;
a power control section which independently performs power-on/power-off of one of the functional blocks of the local device; and
a power-control determination section which performs a determination as to power-on/power-off of the functional blocks on the basis of a power control command supplied via said command transmitting/receiving section and which outputs a result of the determination for each of the functional blocks to said power control section.
1 Assignment
0 Petitions
Accused Products
Abstract
A command transmission/reception section (4R), a power-control determination section (8) and a power control section (9) are provided in a controlled device (3) which is connected to a network (1) and which performs power control in response to a command transmitted from a control device (2). Upon receipt of a power control command from the control device (2), the power-control determination section (8) determines as to power-on/power-off in units of a block, and performs power control on the basis of a result of the determination. Consequently, unnecessary power-on in, for example, video reservation can be prevented.
22 Citations
18 Claims
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1. A power controller for use in a local device having a plurality of functional blocks and that is connected to a bus connection network, the power controller performing power control in accordance with a power control command transmitted from an external device connected to the bus connection network, the power controller comprising:
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a command transmitting/receiving section which receives the power control command from the external device and which transmits a response from the local device; a power control section which independently performs power-on/power-off of one of the functional blocks of the local device; and a power-control determination section which performs a determination as to power-on/power-off of the functional blocks on the basis of a power control command supplied via said command transmitting/receiving section and which outputs a result of the determination for each of the functional blocks to said power control section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for performing power control comprising:
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an external device having a control section for issuing a power control command; a local device having a plurality of functional blocks and a power controller for performing power control of each of the functional blocks; a bus connection network connecting the external device and the local device; wherein the power controller comprises a command transmitting/receiving section which receives the power control command from the external device and which transmits a response from the local device; a power control section which independently performs power-on/power-off of one of the function blocks of the local device; and a power-control determination section which performs a determination as to poweron/power-off of the functional blocks on the basis of a power control command supplied via said command transmitting/receiving section and which outputs a result of the determination for the functional blocks to said power control section. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification