Signal transmission device, electronic device, and signal transmission method

• US 8,718,544 B2
• Filed: 08/31/2010
• Issued: 05/06/2014
• Est. Priority Date: 08/31/2009
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kawasaki, Kenichi, Mihota, Norihito, Takeuchi, Hidenori
• Primary Examiner(s): AKINYEMI, AJIBOLA A
• Application Number:
  US13/391,643
• Publication Number:
  US 20120207195A1
• Time in Patent Office: 1,344 Days
• Field of Search: 455/39
• US Class Current: 455/39
• CPC Class Codes: H04B 1/04 Circuits

Abstract

A signal generation unit 107 and a first set value processing unit 7100 are included in a preceding stage of a transmission path connection unit 108 at a transmission side, and a signal generation unit 207 and a second set value processing unit 7200 are included in a subsequent stage of a transmission path connection unit 208 at a receiving side. The signal generation unit 107 or the signal generation unit 207 performs prescribed signal processing based on a set value. The first set value processing unit 7100 inputs a set value, that has been prescribed for the signal generation unit 107, to the signal generation unit 107, and the second set value processing unit 7200 inputs a set value, that has been prescribed for the signal generation unit 207, to the signal generation unit 207. Since the set value is not dynamically changed according to an environment change, or the like, simplification of a parameter operation circuit or reduction of power consumption is realized, and the parameter operation circuit does not unnecessarily operate even when it is used under the state without environment change.

Claims

1. A signal transmission device comprising:

at least one of a transmission unit for transmitting a signal-processed signal for a transmission target signal as a radio signal and a reception unit for receiving the radio signal transmitted from the transmission unit, wherein a transmission characteristic between the transmission unit and the reception unit is known,

the signal transmission device further comprises;

a signal processing unit for performing prescribed signal processing based on a set value; and

a set value processing unit for inputting the set value for prescribed signal processing to the signal processing unit, and

the signal processing unit and the set value processing unit are provided in at least one of a preceding stage of the transmission unit and a subsequent stage of the reception unit.

2. The signal transmission device according to claim 1, wherein the set value processing unit inputs the set value for prescribed signal processing corresponding to the transmission characteristic between the transmission unit and the reception unit to the signal processing unit.

3. The signal transmission device according to claim 1, wherein:

the set value processing unit comprises;

a set value determination unit for determining a set value;

a storage unit for storing the set value determined by the set value determination unit; and

an operation control unit for operating the signal processing unit based on the set value read from the storage unit.

4. The signal transmission device according to claim 1, wherein:

the set value processing unit comprises;

a set value receiving unit for receiving a set value from the outside;

a storage unit for storing the set value received by the set value receiving unit; and

an operation control unit for operating the signal processing unit based on the set value read from the storage unit.

5. The signal transmission device according to claim 1, wherein:

the signal processing unit comprises an amplitude adjustment unit for performing signal processing to adjust a size of an input signal and output the adjusted signal, and

the set value processing unit inputs a set value for adjusting the size of the input signal to the amplitude adjustment unit.

6. The signal transmission device according to claim 1, wherein:

the signal processing unit comprises a phase adjustment unit for performing signal processing to adjust a phase of an input signal and output the adjusted signal, and

the set value processing unit inputs a set value for adjusting the phase of the input signal to the phase adjustment unit.

7. The signal transmission device according to claim 1, wherein:

the signal processing unit comprises a frequency characteristic correction processing unit for correcting a frequency characteristic of an input signal and outputting the corrected signal, and

the set value processing unit inputs a set value for correcting the frequency characteristic of the input signal to the frequency characteristic correction processing unit.

8. The signal transmission device according to claim 1, wherein:

the signal processing unit comprises an echo suppression unit for suppressing an echo component contained in an input side among signals output from a transmission side, and

the set value processing unit inputs a set value for suppressing the echo component to the echo suppression unit.

9. The signal transmission device according to claim 1, wherein:

the transmission unit and the reception unit each comprise a plurality of antennas, and perform spatial multiplexing communication between transmission and reception,

the signal processing unit includes a matrix operation processing unit for performing a matrix operation based on a channel matrix having a transfer function of each antenna pair between transmission and reception as an element, and

the set value processing unit inputs a set value for performing the matrix operation to the matrix operation processing unit.

10. The signal transmission device according to claim 1, wherein:

a signal processing unit for transmission includes a first carrier signal generation unit for generating a carrier signal for modulation, and a first frequency conversion unit for frequency-converting a transmission target signal with the carrier signal for modulation generated by the first carrier signal generation unit to generate a modulation signal, and transmits the modulation signal to a radio signal transmission path,

a signal processing unit for reception includes a second carrier signal generation unit for generating a carrier signal for demodulation synchronized to the carrier signal for modulation generated by the first carrier signal generation unit as a signal received via the radio signal transmission path is injected, and a second frequency conversion unit for frequency-converting the modulation signal received via the radio signal transmission path with the carrier signal for demodulation generated by the second carrier signal generation unit, and

the set value processing unit inputs a set value for performing injection locking to the signal processing unit for transmission and/or the signal processing unit for reception.

11. The signal transmission device according to claim 1, further comprising:

a reference signal output unit for outputting a reference signal; and

a clock generation unit for generating a clock signal for signal processing for a radio communication process of a spreading code scheme in synchronization with the reference signal output from the reference signal output unit based on the reference signal,

wherein the clock generation unit includes a phase correction unit for performing phase correction according to a set value,

the signal processing unit performs signal processing based on the clock signal subjected to phase correction by the phase correction unit, and

the set value processing unit inputs a set value for performing the phase correction to the phase correction unit.

12. The signal transmission device according to claim 1, wherein:

the signal processing unit includes a first carrier signal generation unit for generating a carrier signal for modulation, and a first frequency conversion unit for frequency-converting a transmission target signal with the carrier signal for modulation generated by the first carrier signal generation unit to generate a transmission signal, and/or, includes a second carrier signal generation unit for generating a carrier signal for demodulation, and a second frequency conversion unit for frequency-converting the received transmission signal with the carrier signal for demodulation generated by the second carrier signal generation unit, and at least one of the carrier signal for modulation and the carrier signal for demodulation can be set to be shifted from a band center of a transmission characteristic between transmission and reception, and

the set value processing unit inputs a set value for defining a shift amount of the frequency of the carrier signal from the band center of the transmission characteristic to the signal processing unit.

13. An electronic device, wherein:

a transmission unit for transmitting a signal-processed signal for a transmission target signal as a radio signal,

a reception unit for receiving the radio signal transmitted from the transmission unit, and

a radio signal transmission path for enabling radio transmission between the transmission unit and the reception unit are arranged in prescribed positions in one housing,

a transmission characteristic between a transmission unit and a reception unit is known, and

a signal processing unit for performing prescribed signal processing based on a set value, and a set value processing unit for inputting the set value for prescribed signal processing to the signal processing unit are included in at least one of a preceding stage of the transmission unit and a subsequent stage of the reception unit.

14. An electronic device comprising:

a first electronic device in which a transmission unit for transmitting a signal-processed signal for a transmission target signal as a radio signal is arranged in a prescribed transmission position in one housing; and

a second electronic device in which a reception unit for receiving the radio signal transmitted from the transmission unit is arranged in a prescribed reception position in one housing,

wherein, when the first electronic device and the second electronic device are arranged in determined positions, a radio signal transmission path enabling radio transmission between the transmission unit and the reception unit is formed,

a transmission characteristic between the transmission unit and the reception unit is known, and

a signal processing unit for performing prescribed signal processing based on a set value and a set value processing unit for inputting the set value for prescribed signal processing to the signal processing unit are included in at least one of a preceding stage of the transmission unit and a subsequent stage of the reception unit.

15. A signal transmission method, wherein:

when transmitting a signal-processed signal for a transmission target signal as a radio signal from a transmission unit and receiving the radio signal transmitted from the transmission unit by a reception unit,

a transmission characteristic between a transmission unit and a reception unit is known,

the method comprising;

inputting a set value for prescribed signal processing to a signal processing unit; and

performing, by the signal processing unit, the prescribed signal processing based on the input set value in at least one of a preceding stage of the transmission unit and a subsequent stage of the reception unit.