Transmitting/receiving system, transmitting device, and device including speaker

• US 8,090,115 B2
• Filed: 01/26/2005
• Issued: 01/03/2012
• Est. Priority Date: 01/28/2004
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Noto, Ryuichiro
• Primary Examiner(s): Mei, Xu
• Assistant Examiner(s): LAO, LUNSEE
• Application Number:
  US11/044,120
• Publication Number:
  US 20050190928A1
• Time in Patent Office: 2,533 Days
• Field of Search: 381/1, 381/2, 381/58, 381/59, 381/77, 381/79, 381/300, 381/98, 381/103, 381/104, 700/94, 455/418, 455/420, 455/41.2, 455/518, 455/519, 709/217, 709/218, 348/14.08, 348/14.09
• US Class Current: 381/77
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones
• CPC Class Codes: H04R 3/12 for distributing signals to two or more loudspeakers specially adapted for hearing aids H04R25/407

Abstract

In a television receiver, based on speaker information of each of one or more devices including speakers which is a memory of the television receiver, a transmitting audio signal to be transmitted to each device including a speaker, in which synchronization is established between devices including speakers in a reproduction mode, is formed and transmitted to the device (including a speaker) through a communication interface. The device (including a speaker) receives the transmitting audio signal addressed thereto through a communication interface, plays back the signal, and uses a speaker of the device to generate sound.

Claims

1. A system comprising:

a first device, the first device comprising;

a speaker of the first device,

a unit configured to switch the first device from an audio source master mode to an audio recipient slave mode,

a storage unit configured to store speaker information of a second device,

a unit configured to form, based on a multichannel audio source signal and on the speaker information stored in the storage unit, an audio signal to be transmitted to the second device when the first device is in the audio source master mode and the second device is in the audio recipient slave mode, wherein at least one channel of the multichannel audio signal is one of a right audio channel, a left audio channel, a center audio channel, a surround left audio channel, a surround right audio channel, or a subwoofer audio channel,

a transmitter configured to transmit the formed audio signal to the second device when the first device is in the audio source master mode, wherein the transmitted audio signal includes control information of the second device,

a receiver configured to receive an audio signal transmitted from the second device when the first device is in the audio recipient slave mode and the second device is in the audio source master mode, and

a reproduction unit configured to reproduce the audio signal transmitted from the second device or using the speaker of the first device when the first device is in the audio recipient slave mode and for reproducing at least one channel of the multichannel audio signal when the first device is in the audio source master mode; and

the second device, the second device comprising;

a speaker of the second device,

a receiver configured to receive the audio signal transmitted from the first device, and

a reproduction unit configured to reproduce the audio signal from the first device, based on the control information included in the audio signal, using the speaker of the second device when the second device is in the audio recipient slave mode and to reproduce an audio signal of the second device, the audio signal of the second device being different from the audio signal transmitted from the first device, using the speaker of the second device when the second device is in either a stand-alone mode or the audio source master mode.

2. The system according to claim 1, wherein the first device further comprises:

an accepting unit configured to accept an input for setting the speaker information; and

a recording unit configured to record, in the storage unit, the accepted speaker information.

3. The system according to claim 1, wherein:

the first device further comprises;

a receiver configured to receive the speaker information from the second device; and

a recording unit configured to record, in the storage unit, the received speaker information; and

the second device further comprises;

a storage unit configured to store speaker information of the first device.

4. The system according to claim 1, wherein the speaker information stored in the storage unit includes at least one of a speaker frequency characteristic, a maximum volume level, the time required for output after receiving the audio signal, the number of speakers, and positional information of the second device.

5. The system according to claim 3, wherein the first device further comprises an accepting unit configured to accept, as a piece of the speaker information stored in the storage unit, an input for setting positional information of the second device.

6. A first device for transmitting an audio signal to a second device that includes a speaker of the second device, the first device comprising:

a speaker of the first device;

a switching unit configured to switch from an audio source master mode to an audio recipient slave mode;

a storage unit configured to store speaker information of the second device;

a unit configured to form, based on a multichannel audio source signal and on the speaker information stored in the storage unit, an audio signal to be transmitted to the second device when the first device is in the audio source master mode, wherein at least one channel of the multichannel audio signal is one of a right audio channel, a left audio channel, a center audio channel, a surround left audio channel, a surround right audio channel, or a subwoofer audio channel;

a transmitter configured to transmit the formed audio signal to the second device when the first device is in the audio source master mode, wherein the transmitted audio signal includes control information of the second device used by the second device to reproduce the transmitted audio signal;

a receiver configured to receive an audio signal transmitted from the second device when the first device is in the audio recipient slave mode; and

a reproduction unit configured to reproduce the audio signal transmitted from the second device using the speaker of the first device when the first device is in the audio recipient slave mode and to reproduce at least one channel of the multichannel audio signal when the first device is in the audio source master mode.

7. The first device according to claim 6, further comprising:

an accepting unit configure to accept an input for setting the speaker information; and

a recording unit configured to record, in the storage unit, the accepted speaker information.

8. The first device according to claim 6, further comprising:

a receiver configured to receive the speaker information from the second device; and

a recording unit configured to record, in said storage unit, the received speaker information.

9. The first device according to claim 6, wherein the speaker information stored in the storage unit includes at least one of a speaker frequency characteristic, a maximum volume level, the time required for output after receiving the audio signal, the number of speakers, and positional information of the second device.

10. The first device according to claim 8, further comprising:

an accepting unit configured to accept, as a piece of the speaker information stored in the storage unit, an input for setting positional information of the second device.