Acoustic system

• US 20070087784A1
• Filed: 01/30/2006
• Published: 04/19/2007
• Est. Priority Date: 10/13/2005
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sato, Yutaka, Yamamoto, Yoshinori, Takahashi, Osamu, Takahashi, Toshimasa, Moriya, Akihito
• Granted Patent: US 8,126,181 B2
• Time in Patent Office: Days
• US Class Current: 455/557
• CPC Class Codes: H04R 2205/021 Aspects relating to docking-station type assemblies to obtain an acoustical effect, e.g. the type of connection to external loudspeakers or housings, frequency improvement
• CPC Class Codes: H04R 2205/026 Single (sub)woofer with two or more satellite loudspeakers for mid- and high-frequency band reproduction driven via the (sub)woofer
• CPC Class Codes: H04R 2499/11 Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
• CPC Class Codes: H04R 5/02 Spatial or constructional arrangements of loudspeakers

Abstract

In addition to output the mid-high range audio sound from the speakers of the main unit, the present invention can output the low range audio sound according to the audio signal transmitted from the main unit through the DC power supply transmission cable from the sub-woofer unit of the AC adapter. Accordingly, the present invention can provide a richly expressive acoustic space without enlarging the size of the main unit.

Claims

1. An acoustic system comprising:

a power supply adapter carrying a woofer unit which outputs a low range audio sound according to an audio signal;

a main unit carrying speaker units which output a mid-high range audio sound according to the audio signal; and

a transmission cable which connects the power supply adapter to the main unit and transmits the audio signal to the power supply adapter from the main unit to output the low range audio sound from the woofer unit.

2. The acoustic system according to claim 1, wherein the power supply adapter has a power supply unit for supplying a DC power to the main unit and integrates the woofer unit with an amplifier for driving the woofer unit.

3. The acoustic system according to claim 1, wherein

the main unit has a connection terminal for electrically connecting a predetermined electronic apparatus, and outputs the mid-high range audio sound according to the audio signal supplied from the electronic apparatus connected through the connection terminal from the speaker units, and transmits the audio signal for outputting the low range audio sound according to the audio signal from the woofer unit of the power supply adapter to the power supply adapter through the transmission cable.

4. The acoustic system according to claim 3, wherein

the main unit supplies and charges power to the electronic apparatus if the electronic apparatus is connected through the connection terminal.

5. The acoustic system according to claim 1, wherein the transmission cable is a DC power supply transmission cable,

the power supply adapter is an AC adapter, and supplies a DC power of a predetermined voltage level converted from a commercial AC power to the main unit through the DC power supply transmission cable, and

the main unit superimposes the audio signal through the DC power supply transmission cable and transmits the audio signal to the power supply adapter.

6. The acoustic system according to claim 1, wherein

the main unit integrates the speaker units with the amplifier for driving the speaker units.

7. The acoustic system according to claim 1, wherein

the power supply adapter is built in a body in the state that the woofer unit is concealed.

8. The acoustic system according to claim 3, wherein

the predetermined electronic apparatus is a portable telephone.