Wireless type data transmission device

• US 20040001453A1
• Filed: 06/13/2003
• Published: 01/01/2004
• Est. Priority Date: 06/20/2002
• Status: Abandoned Application

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Kawai, Sigekazu, Shibata, Isao, Horikoshi, Katsu, Tanaka, Tsutomu, Saito, Yutaka
• Application Number:
  US10/460,642
• Publication Number:
  US 20040001453A1
• Time in Patent Office: Days
• US Class Current: 370/311
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves

Abstract

A wireless type data transmission device (data carrier) has a receiver for receiving electric wave transmitted from a reader-writer, a rectifier for rectifying the received electric wave to generate a first voltage, and a booster for boosting the first voltage to produce a second voltage, which is higher than the first voltage, to drive an internal circuit of the wireless type data transmission device.

Claims

1. A wireless type data transmission device that generates electric power based on electric wave transmitted from a transmission device, the wireless type data transmission device comprising:

means for receiving said electric wave;

means for rectifying said received electric wave to generate a voltage; and

means for boosting said voltage to produce a driving voltage to drive an internal circuit of said wireless type data transmission device.

3. A wireless type data transmission device according to claim 1, wherein:

said rectifying means includes a first rectifier that full-wave rectifies the received electric wave to generate a first voltage, a second rectifier that half-wave rectifies the received electric wave to generate a second voltage, and a third rectifier that half-wave rectifies the received electric wave to generate a third voltage; and

said boosting means produces the driving voltage that is boosted such that said first voltage is stepwise boosted based on the switching operating of said second and third voltages.

5. A wireless type data transmission device according to claim 1, wherein:

said rectifying means includes a first rectifier that full-wave rectifies the received electric wave to generate a first voltage, an oscillator that is driven by said first voltage to generate a second voltage, and an inverter that is driven by said first voltage and inverts said second voltage to reversed phase to generate a third voltage; and

said boosting means produces the driving voltage that is boosted such that said first voltage is stepwise boosted based on the switching operating of said second and third voltages.

7. A wireless type data transmission device according to claim 1, further comprising a secondary cell that is charged by charge current based on the driving voltage.

9. A wireless type data transmission device according to claim 1, wherein:

said boosting means includes multiple stages of boosters.

11. A wireless type data transmission device according to claim 1, wherein:

said electric wave transmitted from said transmission device is a carrier wave.

13. A wireless type data transmission device according to claim 1, wherein:

said wireless type data transmission device is a data carrier, a PDA device, a solid-state image sensing device, an emergency lamp or radio, or backup power source.

2. A wireless type data transmission device that generates electric power based on electric wave transmitted from a transmission device, the wireless type data transmission device comprising:

means for receiving said electric wave that is modulated according to data to be transmitted from said transmission device and for demodulating said electric wave to extract said data;

means for conducting an operation according to said extracted data;

means for rectifying said received electric wave to generate a voltage; and

means for boosting said voltage to produce a driving voltage to drive an internal circuit of said wireless type data transmission device.

4. A wireless type data transmission device according to claim 2, wherein:

said rectifying means includes a first rectifier that full-wave rectifies the received electric wave to generate a first voltage, a second rectifier that half-wave rectifies the received electric wave to generate a second voltage, and a third rectifier that half-wave rectifies the received electric wave to generate a third voltage; and

said boosting means produces the driving voltage that is boosted such that said first voltage is stepwise boosted based on the switching operating of said second and third voltages.

6. A wireless type data transmission device according to claim 2, wherein:

said rectifying means includes a first rectifier that full-wave rectifies the received electric wave to generate a first voltage, an oscillator that is driven by said first voltage to generate a second voltage, and an inverter that is driven by said first voltage and inverts said second voltage to reversed phase to generate a third voltage; and

said boosting means produces the driving voltage that is boosted such that said first voltage is stepwise boosted based on the switching operating of said second and third voltages.

8. A wireless type data transmission device according to claim 2, further comprising a secondary cell that is charged by charge current based on the driving voltage.

10. A wireless type data transmission device according to claim 2, wherein:

said boosting means includes multiple stages of boosters.

12. A wireless type data transmission device according to claim 2, wherein:

said electric wave transmitted from said transmission device is a carrier wave.

14. A wireless type data transmission device according to claim 2, wherein:

said wireless type data transmission device is a data carrier, a PDA device, a solid-state image sensing device, an emergency lamp or radio, or backup power source.