Data processing terminal system and transmitting and receiving method using the same

• US 8,538,348 B2
• Filed: 01/13/2012
• Issued: 09/17/2013
• Est. Priority Date: 04/01/2003
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Oga, Toshiyuki
• Primary Examiner(s): NGUYEN, TUAN HOANG
• Application Number:
  US13/350,289
• Publication Number:
  US 20120184226A1
• Time in Patent Office: 613 Days
• Field of Search: 455/1, 455/323, 455/424, 455/500, 455/502, 455/554.2, 455/556.1, 455/557, 455/100
• US Class Current: 455/100
• CPC Class Codes: H04B 1/0003 Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain digital baseband systems H04L25/00; digital modulation/demodulation H04L27/00; CDMA H04B1/707; TDMA H04B7/2643; image transmission H04N5/00
• CPC Class Codes: H04B 1/036 Cooling arrangements
• CPC Class Codes: H04B 1/40 Circuits
• CPC Class Codes: H04L 7/0079 Receiver details

Abstract

An information processing terminal system includes an information processing terminal; and a transmitting and receiving unit which is attached to the information processing terminal. The transmitting and receiving unit converts a reception wave signal from a network into a reception analog baseband signal. The transmitting and receiving unit converts the reception analog baseband signal into a reception digital baseband signal in synchronization with a clock. The information processing terminal converts the reception digital baseband signal into a reception data in synchronization with a clock, and a transmission data into a transmission digital baseband signal in synchronization with the clock. The transmitting and receiving unit converts the transmission digital baseband signal into a transmission analog baseband signal in synchronization with the clock. The transmitting and receiving unit converts the transmission analog baseband signal into a transmission modulation wave signal to output to the network.

Claims

1. An information processing terminal comprising:

a radio unit; and

a signal processing unit connected with said radio unit,

wherein said radio unit generates a reception baseband signal based on a reception radio signal,

wherein said signal processing unit includes;

a processing circuit configured to receive said reception baseband signal, to perform a receiving process which generates reception data based on said reception baseband signal, and to perform an information process which is not related to said receiving process, and

a first heat-radiating mechanism configured to radiate heat generated on said receiving process and said information process.

2. The information processing terminal according to claim 1,

wherein said radio unit includes:

a second heat-radiating mechanism configured to radiate heat generated in said radio unit.

3. The information processing terminal according to claim 2, wherein said second heat-radiating mechanism is not used for radiating heat radiated from said first heat-radiating mechanism.

4. The information processing terminal according to claim 3, wherein said processing circuit performs a transmitting process which corresponds to said receiving process and generates a transmission baseband signal based on transmission data,

wherein said radio unit generates a transmission radio signal based on said transmission baseband signal, and

wherein said first heat-radiating mechanism radiates heat generated on said transmitting process.

5. The information processing terminal according to claim 4, wherein said transmitting process includes at least one of a redundant data adding process for an error correction, an encoding process, an identifier adding process, a Fourier inverse transform process and a digital waveform process.

6. The information processing terminal according to claim 4, wherein said processing circuit controls transmission power of a destination side of a communication.

7. The information processing terminal according to claim 2, wherein said receiving process includes at least one of an error correction process, a decoding process, an identifier removing process, a Fourier transform process and a digital waveform process.

8. The information processing terminal according to claim 7, wherein said processing circuit performs a transmitting process which corresponds to said receiving process and generates a transmission baseband signal based on transmission data,

wherein said radio unit generates a transmission radio signal based on said transmission baseband signal, and

wherein said first heat-radiating mechanism radiates heat generated on said transmitting process.

9. The information processing terminal according to claim 8, wherein said transmitting process includes at least one of a redundant data adding process for an error correction, an encoding

process, an identifier adding process, a Fourier inverse transform process and a digital waveform process.

10. The information processing terminal according to claim 8, wherein said processing circuit controls transmission power of a destination side of a communication.

11. The information processing terminal according to claim 2, wherein said processing circuit performs a transmitting process which corresponds to said receiving process and generates a transmission baseband signal based on transmission data,

wherein said radio unit generates a transmission radio signal based on said transmission baseband signal, and

wherein said first heat-radiating mechanism radiates heat generated on said transmitting process.

12. The information processing terminal according to claim 11, wherein said transmitting process includes at least one of a redundant data adding process for an error correction, an encoding process, an identifier adding process, a Fourier inverse transform process and a digital waveform process.

13. The information processing terminal according to claim 11,

wherein said processing circuit controls transmission power of a destination side of a communication.

14. The information processing terminal according to claim 11, wherein said processing circuit dynamically selects an error correction method and an encoding method.

15. The information processing terminal according to claim 11, wherein said information process includes a process executed based on an application program.

16. The information processing terminal according to claim 1, wherein said processing circuit dynamically selects an error correction method and an encoding method.

17. The information processing terminal according to claim 1, wherein said information process includes a process executed based on an application program.