Method and device for triggering power supply switch of a cordless electric-apparatus

• US 20040221183A1
• Filed: 05/01/2003
• Published: 11/04/2004
• Est. Priority Date: 05/01/2003
• Status: Active Grant

• Current Assignee: Microlink Communications, Inc. (Cheng UEI Precision Industry Company Limited)
• Original Assignee: Microlink Communications, Inc. (Cheng UEI Precision Industry Company Limited)
• Inventors: Lu, Kuo-Cheng
• Granted Patent: US 7,010,705 B2
• Time in Patent Office: Days
• US Class Current: 713/300
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1656 Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203
• CPC Class Codes: G06F 1/3203 Power management, i.e. event-based initiation of a power-saving mode
• CPC Class Codes: G06F 1/3231 Monitoring the presence, absence or movement of users
• CPC Class Codes: G06F 1/3259 Power saving in cursor control device, e.g. mouse, joystick, trackball
• CPC Class Codes: G06F 3/03543 Mice or pucks G06F3/03541 takes precedence
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

A method for triggering power supply module switch of a cordless electric-apparatus which includes a metal inductive area and an electrostatic inductive element comprising the following steps: when user body approaches the device to a predetermine distance which is less than the electrostatic induction distance, the electrostatic inductive element detecting electrostatic charge from user body so as to turn a switch within the electrostatic inductive element on; according to the switch turned on, a power supply module supplying power for the cordless electric-apparatus; when user body leaving away from the cordless electric-apparatus exceed the electrostatic induction, the switch within the electrostatic inductive element being turn off; and according to the switch within the electrostatic inductive element turned off, the power supply module supplying a part power for the cordless electric-apparatus. A device for triggering power supply module switch of a cordless electric-apparatus comprising: a metal inductive area placed on the shell of the cordless electric-apparatus; an electrostatic inductive element having an inductive electrode connected to the metal inductive area, so as to detect whether the distance between user body and the metal inductive area less than the electrostatic induction distance; and a power supply module connecting to the electrostatic inductive element.

Claims

1. A method for triggering power supply module switch of a cordless electric-apparatus which includes a metal inductive area and an electrostatic inductive element comprising the following steps:

a. when user body approaches the device to a predetermine distance which is less than the electrostatic induction distance, said electrostatic inductive element detecting electrostatic charge from user body so as to turn a switch within the electrostatic inductive element on;

b. according to the switch turned on, a power supply module supplying power for the cordless electric-apparatus;

c. when user body leaving away from the cordless electric-apparatus exceed the electrostatic induction distance, the switch within the electrostatic inductive element being turned off; and

d. according to the switch within the electrostatic inductive element turned off, the power supply module supplying a part power for the cordless electric-apparatus.

2. The method for triggering power supply module switch of a cordless electric-apparatus as claimed in claim 1, wherein the state of the power supply module can be set as reverse to the state of the electrostatic inductive element.

3. The method for triggering power supply module switch of the cordless electric-apparatus as claimed in claim 1, wherein a CPU within the cordless electric-apparatus controls the power supply module to provide the cordless electric-apparatus with performance mode and sleep mode.

4. The method for triggering power supply module switch of a cordless electric-apparatus as claimed in claim 1, wherein user body leaves away from the cordless electric-apparatus, the power supply module will supply a part of power for the cordless hand-held apparatus.

5. A device for triggering power supply module switch of a cordless electric-apparatus comprising:

a metal inductive area placed on the shell of the cordless electric-apparatus;

an electrostatic inductive element having an inductive electrode connected to the metal inductive area, so as to detect whether the distance between user body and the metal inductive area less than the electrostatic induction distance; and

a power supply module connecting to the electrostatic inductive element,

when the distance between user body and the metal inductive area is less than the electrostatic induction distance, the power supply module supplies power for the cordless electric-apparatus to be a performance mode; and

when the distance between user body and the metal inductive area is not less than the electrostatic induction distance, the power supply module supplies a part of power for the cordless electric-apparatus to be a sleep mode

6. The device for triggering power supply module switch of a cordless electric-apparatus as claimed in claim 5, further comprising a CPU connected between the electrostatic inductive element and the power supply module to control the power supply module for providing the cordless electric-apparatus with a performance mode and sleep mode.

7. The device for triggering power supply module switch of a cordless electric-apparatus as claimed in claim 5, wherein the a cordless electric-apparatus have a PCB (printed circuit board) which shape fits close the shape that cross section of the cordless electric-apparatus and abuts on inner sidepiece of the cordless electric-apparatus, the metal inductive area is equipped along the PCB edge.

8. The device for triggering power supply module switch of a cordless electric-apparatus as claimed in claim 5, wherein the cordless electric-apparatus is a cordless mouse.

9. The device for triggering power supply module switch of a cordless electric-apparatus as claimed in claim 5, wherein the cordless electric-apparatus is a cordless phone.

10. The device for triggering power supply module switch of a cordless electric-apparatus as claimed in claim 5, wherein the cordless electric-apparatus is a PDA (Personal Digital Assistant).