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Power supply control apparatus

A power control device and power control technology, which can be applied to TVs, color TVs, electrical components, etc., and can solve problems such as safety problems and unfavorable power saving.

Inactive Publication Date: 2003-12-03
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, not only is there a problem with safety, but it is also not conducive to saving electricity.

Method used

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  • Power supply control apparatus
  • Power supply control apparatus
  • Power supply control apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0022] FIG. 2 is a block diagram showing a basic connection relationship of devices including a power control device according to Embodiment 1 of the present invention. As shown in FIG. 2 , at least one set of the control device 2 and the control target device 3A is connected via the network 1 . The control device 2 and the control target device 3A are, for example, audio / video devices in a home. Even if they are the same device in terms of configuration, the controlling side is called the controlling device 2 and the controlled device is called the controlled device 3A. Therefore, the control device 2 has a function of transmitting a control command for operating other devices, and the control target device 3 has a function of executing the transmitted control command.

[0023] The configuration of the control device 2 includes a command transceiving unit 4S and a control unit 5 . The control unit 5 transmits a power-on command to the controlled device 3A, and interprets th...

Embodiment approach 2

[0031]Next, a power supply control device according to Embodiment 2 of the present invention will be described. 3 is a configuration diagram showing a basic connection relationship of devices including a power control device according to Embodiment 2. FIG. Among them, the same parts as those in Embodiment 1 are given the same reference numerals, and their descriptions are omitted. The control target device 3B includes a decision information recording unit 10 in addition to a command transceiving unit 4R, a command execution unit 6 having a channel selection control decision unit 7 and a power control decision unit 8 , and a power control unit 9 . Furthermore, when the control target device 3B is a TV, a tuner unit 11 and a monitor unit 12 are provided.

[0032] The judgment information recording unit 10 is composed of a nonvolatile memory such as EEPROM, and when receiving an external power supply control command, holds flag information indicating whether the command executio...

Embodiment approach 3

[0040] Next, a power supply control device according to Embodiment 3 of the present invention will be described. FIG. 6 is a configuration diagram showing the basic connection relationship of each device including the power control device according to the present embodiment. Among them, the same parts as those in Embodiments 1 and 2 are denoted by the same symbols, and descriptions thereof are omitted. The configuration of the control target device 3C in this embodiment is other than the command transceiving unit 4R, the command execution unit 6 having the channel selection control determination unit 7 and the power control determination unit 8, the power control unit 9, and the determination information recording unit 10. The configuration further includes an external device recognition unit 13 . Furthermore, when the control target device 3C is a TV, a tuner unit 11 and a monitor unit 12 are provided.

[0041] The external device identification unit 13 checks all control t...

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PUM

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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.

Description

technical field [0001] The present invention relates to an audio / video device connected to a digital network such as IEEE 1394, which uses a power control command from another device to turn on or off an internal power source. Background technique [0002] In conventional television receivers (hereinafter referred to as TVs), etc., in most cases, the TV main body is powered on by a power source operation other than the TV main body, that is, by a remote controller. When the TV main body receives a command to turn on the power from the remote control signal from the standby state, the TV main body is powered on. This kind of power supply is obviously the occasion where the user performs power supply operation indoors. [0003] On the other hand, in the IEEE1394 digital network, control commands of audio / video equipment are standards formulated by industry standardization bodies. By installing a device control command processing program in accordance with this standard, it b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/12H04L12/28H04N5/00H04N7/24
CPCH04N21/4334H04L12/2803H04N21/4432H04L2012/2849H04L12/12H04N21/43632H04L12/282Y02B60/32H04N21/43615Y02B60/34H04N21/4263Y02D30/50G11B20/10
Inventor 宗实俊和
Owner PANASONIC CORP