US 7,548,494 B2Granted

Audio system, and disc reproduction device and audio output control device for use therein

AssigneeOnkyo Corporation

InventorsDai Shimozawa, Hiroyuki Fukuma

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Abstract

Players 2A and 2B are each capable of outputting data read from a disc such as a CD or an SACD in any of signal formats including an IEEE 1394 format, an analog format and a digital format. An AV amplifier 3 includes a first output system for selectively outputting, to a speaker system 4A, one of a plurality of audio signals of different signal formats including the IEEE 1394 format, the analog format and the digital format, and a second output system for selectively outputting, to a speaker system 4B, one of a plurality of audio signals of different signal formats including the analog format and the digital format. If the player 2A is selected as the input for the first output system, the AV amplifier 3 sends a command to the player 2A instructing the player 2A to output an audio signal in the IEEE 1394 format, automatically setting the output signal format of the player 2A to be a format that can be reproduced through the first output system.

Claims18

Dependent claims

An audio system, comprising a disc reproduction device and an audio output control device, wherein:

the disc reproduction device includes:
a disc reading section for reading audio data recorded on a disc;
a first signal output section for outputting the audio data in a first signal format;
a second signal output section for outputting the audio data in a second signal format different from the first signal format;
an output selection section for selecting whether the audio data read by the disc reading section is output in the first or second signal format;
and
an output selection controller for controlling the selection operation by the output selection section;
the audio output control device includes:
a first signal input section for receiving audio data of the first signal format;
a second signal input section for receiving audio data of the second signal format;
an audio output processing section for outputting the audio data of the first signal format or the second signal format to a sound generator;
an input selection section for selecting one of a plurality of audio data received from the first and second signal input sections and inputting the selected audio data to the audio output processing section;
and
an input selection controller for controlling the selection operation by the input selection section;
the disc reproduction device further includes a determination section for determining whether or not data can be exchanged between the first signal output section and the first signal input section;
and
the output selection controller controls the selection operation by the output selection section so that audio data read by the disc reading section is output in the first signal format if audio data can be exchanged between the first signal output section and the first signal input section whereas the audio data read by the disc reading section is output in the second signal format if audio data cannot be exchanged between the first signal output section and the first signal input section.

14 more elements

An audio system, comprising a disc reproduction device and an audio output control device, wherein:

the disc reproduction device includes:
a disc reading section for reading audio data recorded on a disc;
a first signal output section for outputting the audio data in a first signal format;
a second signal output section for outputting the audio data in a second signal format different from the first signal format;
an output selection section for selecting whether the audio data read by the disc reading section is output in the first or second signal format;
and
an output selection controller for controlling the selection operation by the output selection section;
the audio output control device includes:
a first signal input section for receiving the audio data output from the first signal output section;
a second signal input section for receiving the audio data output from the second signal output section;
a first audio output processing section for outputting audio data of the first signal format or the second signal format to a first sound generator;
a first input selection section for selecting one of a plurality of audio data received from the first and second signal input sections and inputting the selected audio data to the first audio output processing section;
and
an input selection controller for controlling the selection operation by the first input selection section;
the audio output control device further includes:
a determination section for determining whether or not the audio data output from the first signal output section of the disc reproduction device is being selected among the audio data input from the first signal input section via the first input selection section;
and
a command sending section for sending, to the output selection controller of the disc reproduction device, a command instructing the output selection controller of the disc reproduction device to output the audio data read by the disc reading section in the first signal format if it is determined by the determination section that the audio data output from the first signal output section of the disc reproduction device is being selected, and sending, to the output selection controller of the disc reproduction device, a command instructing the output selection controller of the disc reproduction device to output the audio data read by the disc reading section in the second signal format if it is determined by the determination section that the audio data output from the first signal output section of the disc reproduction device is not being selected;
and
the output selection controller of the disc reproduction device controls the selection operation by the output selection section based on the command sent from the command sending section.

17 more elements

A disc reproduction device, comprising:

a disc reading section for reading audio data recorded on a disc;
a first signal output section for outputting the audio data in a first signal format;
a second signal output section for outputting the audio data in a second signal format different from the first signal format;
an output selection section for selecting whether the audio data read by the disc reading section is output in the first or second signal format;
and
an output selection controller for controlling the selection operation by the output selection section;
wherein:
the disc reproduction device can be connected to an audio output control device;
the audio output control device includes:
a first signal input section for receiving the audio data output from the first signal output section;
a second signal input section for receiving the audio data output from the second signal output section;
a first audio output processing section for outputting audio data of the first signal format or the second signal format to a first sound generator;
a first input selection section for selecting one of a plurality of audio data received from the first and second signal input sections and inputting the selected audio data to the first audio output processing section;
an input selection controller for controlling the selection operation by the first input selection section;
a determination section for determining whether or not the audio data output from the first signal output section is being selected among the audio data input from the first signal input section via the first input selection section;
and
a command sending section for sending a command instructing to output the audio data read by the disc reading section in the first signal format if it is determined by the determination section that the audio data output from the first signal output section is being selected, and sending a command instructing to output the audio data read by the disc reading section in the second signal format if it is determined by the determination section that the audio data output from the first signal output section of the disc reproduction device is not being selected;
and
the disc reproduction device further comprises an output selection controller for controlling the selection operation by the output selection section based on the command sent from the command sending section.

16 more elements

An audio output control device comprising:

a first signal input section for receiving audio data of a first signal format output from a first signal output section of a disc reproduction device;
a second signal input section for receiving audio data of a second signal format output from a second signal output section of the disc reproduction device;
a first audio output processing section for outputting audio data of the first signal format or the second signal format to a first sound generator;
a first input selection section for selecting one of a plurality of audio data received from the first and second signal input sections and inputting the selected audio data to the first audio output processing section;
an input selection controller for controlling the selection operation by the first input selection section;
a determination section for determining whether or not the audio data output from the first signal output section of the disc reproduction device is being selected among the audio data input from the first signal input section via the first input selection section;
a command sending section for sending, to the disc reproduction device, a command instructing the disc reproduction device to output audio data read by a disc reading section in the first signal format if it is determined by the determination section that the audio data output from the first signal output section of the disc reproduction device is being selected, and sending, to the disc reproduction device, a command instructing the disc reproduction device to output the audio data read by the disc reading section in the second signal format if it is determined by the determination section that the audio data output from the first signal output section of the disc reproduction device is not being selected.

4 more elements

An audio system, comprising a disc reproduction device and an audio output control device, wherein:

the disc reproduction device includes:
a disc reading section for reading audio data recorded on a disc;
a first signal output section for outputting the audio data in a first signal format;
a second signal output section for outputting the audio data in a second signal format different from the first signal format;
an output selection section for selecting whether the audio data read by the disc reading section is output in the first or second signal format;
and
an output selection controller for controlling the selection operation by the output selection section;
the audio output control device includes:
a first signal input section for receiving the audio data output from the first signal output section;
a second signal input section for receiving the audio data output from the second signal output section;
a first audio output processing section for outputting audio data of the first signal format or the second signal format to a first sound generator;
a second audio output processing section for outputting audio data of the second signal format to a second sound generator;
a first input selection section for selecting one of a plurality of audio data received from the first and second signal input sections and inputting the selected audio data to the first audio output processing section;
a second input selection section for selecting one of a plurality of audio data received from the second signal input section and inputting the selected audio data to the second audio output processing section;
and
an input selection controller for controlling the selection operation by the first and second input selection section;
the audio output control device further includes:
a determination section for determining whether or not the audio data output to the second input selection section from the disc reproduction device is in the first signal format;
and
a command sending section for sending, to the output selection controller of the disc reproduction device, a command instructing the output selection controller of the disc reproduction device to output the audio data read by the disc reading section in the second signal format if it is determined by the determination section that the audio data output from the disc reproduction device is in the first signal format;
and
the output selection controller of the disc reproduction device controls the selection operation by the output selection section based on the command sent from the command sending section.

19 more elements

A disc reproduction device, comprising:

a disc reading section for reading audio data recorded on a disc;
a first signal output section for outputting the audio data in a first signal format;
a second signal output section for outputting the audio data in a second signal format different from the first signal format;
an output selection section for selecting whether the audio data read by the disc reading section is output in the first or second signal format, and
an output selection controller for controlling the selection operation by the output selection section;
wherein:
the disc reproduction device can be connected to an audio output control device;
the audio output control device includes:
a first signal input section for receiving the audio data output from the first signal output section;
a second signal input section for receiving the audio data output from the second signal output section;
a first audio output processing section for outputting audio data of the first signal format or the second signal format to a first sound generator;
a second audio output processing section for outputting audio data of the second signal format to a second sound generator;
a first input selection section for selecting one of a plurality of audio data received from the first and second signal input sections and inputting the selected audio data to the first audio output processing section;
a second input selection section for selecting one of a plurality of audio data received from the second signal input section and inputting the selected audio data to the second audio output processing section;
an input selection controller for controlling the selection operation by the first and second input selection section;
a determination section for determining whether or not the audio data output to the second input selection section from the disc reproduction device is in the first signal format;
and
a command sending section for sending, to the output selection controller of the disc reproduction device, a command instructing the output selection controller of the disc reproduction device to output the audio data read by the disc reading section in the second signal format if it is determined by the determination section that the audio data output from the disc reproduction device is in the first signal format;
and
the output selection controller of the disc reproduction device controls the selection operation by the output selection section based on the command sent from the command sending section.

17 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/226,676Filed 14 Sep 2005
Priority: JP 2004-30430619 Oct 2004
Published: US 2006/0093330 A14 May 2006
Granted: 16 Jun 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G11B 27/105
Programmed access in sequence to addressed parts of tracks of operating record carriers: of operating discs
G11B 2220/2562
Optical discs: dVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
G11B 2220/2583
Optical discs: wherein two standards are used on a single disc, e.g. one DVD section and one CD section
G11B
Information storage based on relative movement between record carrier and transducer