Multichannel acoustic signal reproducing apparatus

• US 20020048381A1
• Filed: 08/14/2001
• Published: 04/25/2002
• Est. Priority Date: 08/18/2000
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Tamayama, Ryuzo
• Granted Patent: US 7,146,018 B2
• Time in Patent Office: Days
• US Class Current: 381/307
• CPC Class Codes: H04R 2205/022 Plurality of transducers corresponding to a plurality of sound channels in each earpiece of headphones or in a single enclosure
• CPC Class Codes: H04R 2499/15 Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
• CPC Class Codes: H04R 5/02 Spatial or constructional arrangements of loudspeakers

Abstract

A system reproducing surround phonic sound is simply constructed by a multichannel acoustic signal reproducing apparatus having at least a DVD reproducing section. A DVD, a CD, a radio or the like and speakers are provided integrally with the multichannel acoustic signal reproducing apparatus and the integral system is made movable. The acoustic signal reproducing apparatus is connected to a television receiver by an IEEE1394 interface or a USB interface. Speakers of the television receiver are used as main speakers and the speakers of a multichannel acoustic signal reproducing apparatus main body are used as sub-speakers such as rear speakers. The main speakers are controllable from the main body side.

Claims

1. A multichannel acoustic signal reproducing apparatus of a movable type, capable of reproducing surround phonic sound and having at least three-dimensional speakers, comprising:

output means for driving left and right main channel speakers.

2. A multichannel acoustic signal reproducing apparatus comprising at least:

a center speaker;

left and right speakers separable from a housing;

recording and reproducing means capable of recording and reproducing a recording medium;

surround decoding means for decoding a multichannel acoustic signal from the recording and reproducing means to surround phonic sound;

switching means for reproducing a predetermined number of channels of the multichannel acoustic signal through the center speaker and the left and right speakers, and switching and outputting remaining channels of the multichannel acoustic signal; and

control means for controlling the recording and reproducing means, the surround decoding means and the switching means, and

wherein channel signals of the remaining channels from the switching means are supplied to a target having speakers and capable of recording the channel signals, and reproduced as surround phonic sound through the control means, the target being a television receiver or an acoustic equipment.

3. The multichannel acoustic signal reproducing apparatus according to claim 2, wherein

an output signal from the output means is transmitted to the target of the a television receiver etc. having the main speakers by a wire consisting of one wire or wirelessly;

and

the speakers of the multichannel acoustic signal reproducing apparatus are used as rear speakers.