Electronic device and wireless communication terminal

• US 20050158010A1
• Filed: 01/18/2005
• Published: 07/21/2005
• Est. Priority Date: 01/19/2004
• Status: Abandoned Application

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Ito, Norio, Iida, Izumi, Ikeda, Masayuki
• Application Number:
  US11/037,778
• Publication Number:
  US 20050158010A1
• Time in Patent Office: Days
• US Class Current: 385/147
• CPC Class Codes: G06F 1/1616 with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
• CPC Class Codes: G06F 1/1622 with enclosures rotating around an axis perpendicular to the plane they define or with ball-joint coupling, e.g. PDA with display enclosure orientation changeable between portrait and landscape by rotation with respect to a coplanar body enclosure
• CPC Class Codes: G06F 1/1647 including at least an additional display G06F1/1692 takes precedence
• CPC Class Codes: G06F 1/1683 for the transmission of signal or power between the different housings, e.g. details of wired or wireless communication, passage of cabling
• CPC Class Codes: G06F 1/1686 the I/O peripheral being an integrated camera
• CPC Class Codes: H04B 1/3833 Hand-held transceivers
• CPC Class Codes: H04M 1/0214 Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position combined with translation movement H04M1/0235
• CPC Class Codes: H04M 1/0225 Rotatable telephones, i.e. the body parts pivoting to an open position around an axis perpendicular to the plane they define in closed position combined with translation movement H04M1/0235
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: H04M 2250/16 including more than one display unit
• CPC Class Codes: H04M 2250/52 including functional features of a camera
• CPC Class Codes: H04W 52/027 by controlling a display operation or backlight unit
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An electronic device is provided wherein a unit for converting a transmission signal to an electromagnetic wave signal and a unit for receiving the electromagnetic wave signal and restoring the transmission signal are disposed in the same casing, and high-speed large-capacity transfer data are transferred wirelessly.

Claims

1. An electronic device comprising:

a casing;

a first portion housed in the casing, the first portion including an electromagnetic wave conversion unit that converts a transmission signal to an electromagnetic wave signal and a transmission unit that wirelessly transmits the electromagnetic wave signal; and

a second portion housed in the casing, the second portion including a reception unit that receives the electromagnetic wave signal and an electromagnetic wave restoration unit that restores the received electromagnetic wave signal to the transmission signal.

3. The electronic device of claim 1, wherein the electromagnetic wave conversion unit comprises at least a carrier wave generation unit that generates a carrier wave pulse train and a multiplier circuit that multiplies the carrier wave pulse train with the transmission signal.

4. The electronic device of claim 3, wherein the electromagnetic wave restoration unit comprises at least a multiplier circuit that multiplies the carrier wave pulse train with the received electromagnetic wave signal to restore the transmission signal.

5. The electronic device of claim 1, wherein the electromagnetic wave conversion unit includes at least a carrier wave generation unit that generates a carrier wave pulse train and a modulation unit that phase-modulates, with the transmission signal, the carrier wave generated by the carrier wave generation unit.

6. The electronic device of claim 5, wherein the electromagnetic wave restoration unit comprises at least a multiplier circuit that multiplies the carrier wave pulse train with the received electromagnetic wave signal to restore the transmission signal.

7. The electronic device of claim 1, wherein the electromagnetic wave conversion unit includes a diffusion modulation unit that code-multiplexes and diffusion-modulates the transmission signal.

8. The electronic device of claim 1, wherein the electromagnetic wave conversion unit includes a UWB modulation unit that UWB-modulates the transmission signal.

9. The electronic device of claim 1, wherein:

the first portion includes a storage unit that stores the transmission signal and a control unit that reads and outputs the transmission signal stored in the storage unit,

the second portion includes a display unit, and

the display unit displays the transmission signal read and outputted by the control unit.

10. The electronic device claim 1, wherein the first portion includes an image shooting element, and image data shot by the image shooting element are included in the transmission signal.

2. An electronic device comprising:

a first casing unit housing a first portion which includes an electromagnetic wave conversion unit that converts a transmission signal to an electromagnetic wave signal and a transmission unit that wirelessly transmits the electromagnetic wave signal;

a second casing unit housing a second portion which includes a reception unit that receives the electromagnetic wave signal and an electromagnetic wave restoration unit that restores the received electromagnetic wave signal to the transmission signal; and

a coupler unit that couples together the first casing unit and the second casing unit so that the positional relationship between the first casing unit and the second casing unit can be changed.

12. The electronic device of claim 2, wherein the electromagnetic wave conversion unit comprises at least a carrier wave generation unit that generates a carrier wave pulse train and a multiplier circuit that multiplies the carrier wave pulse train with the transmission signal.

13. The electronic device of claim 12, wherein the electromagnetic wave restoration unit comprises at least a multiplier circuit that multiplies the carrier wave pulse train with the received electromagnetic wave signal to restore the transmission signal.

14. The electronic device of claim 2, wherein the electromagnetic wave conversion unit includes at least a carrier wave generation unit that generates a carrier wave pulse train and a modulation unit that phase-modulates, with the transmission signal, the carrier wave generated by the carrier wave generation unit.

15. The electronic device of claim 14, wherein the electromagnetic wave restoration unit comprises at least a multiplier circuit that multiplies the carrier wave pulse train with the received electromagnetic wave signal to restore the transmission signal.

16. The electronic device of claim 2, wherein the electromagnetic wave conversion unit includes a diffusion modulation unit that code-multiplexes and diffusion-modulates the transmission signal.

17. The electronic device of claim 2, wherein the electromagnetic wave conversion unit includes a UWB modulation unit that UWB-modulates the transmission signal.

18. The electronic device of claim 2, wherein:

the first portion includes a storage unit that stores the transmission signal and a control unit that reads and outputs the transmission signal stored in the storage unit,

the second portion includes a display unit, and

the display unit displays the transmission signal read and outputted by the control unit.

19. The electronic device claim 2, wherein the first portion includes an image shooting element, and image data shot by the image shooting element are included in the transmission signal.

11. A wireless communication terminal comprising:

a first casing unit;

a second casing unit coupled to the first casing unit;

a coupler portion that couples together the first casing unit and the second casing unit so that the positional relationship between the first casing unit and the second casing unit can be changed;

an external wireless communication-use antenna disposed at least at one of the first casing unit and the second casing unit;

an external wireless communication control unit that is disposed in the first casing unit and substantially controls external wireless communication conducted via the external wireless communication-use antenna;

a display unit disposed in the second casing unit;

a first internal wireless communication-use antenna disposed at the first casing unit;

a second internal wireless communication-use antenna disposed at the second casing unit;

a first internal wireless communication control unit that is disposed in the first casing unit and controls internal wireless communication conducted via the first internal wireless communication-use antenna; and

a second internal wireless communication control unit that is disposed in the second casing unit and controls internal wireless communication conducted via the second internal wireless communication-use antenna.