JPS6462039A - Digital mute circuit - Google Patents
Digital mute circuitInfo
- Publication number
- JPS6462039A JPS6462039A JP21783187A JP21783187A JPS6462039A JP S6462039 A JPS6462039 A JP S6462039A JP 21783187 A JP21783187 A JP 21783187A JP 21783187 A JP21783187 A JP 21783187A JP S6462039 A JPS6462039 A JP S6462039A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- section
- signal processing
- digital
- audio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Noise Elimination (AREA)
- Stereo-Broadcasting Methods (AREA)
Abstract
PURPOSE:To prevent noise from being generated in an audio circuit by shutting off a signal other than an audio data from being transferred to the audio circuit. CONSTITUTION:A digital signal recorded on a CD 1 is read by a pickup section 2, sent to a CD signal processing section 3, where signal processing is applied according to the CD format and the signal is fed to a CD-ROM signal processing section 7, where the signal processing is attained by the CD-ROM format. On the other hand, the signal is fed to a D/A converter section 6 through a gate circuit 5 from the CD signal processing section 3 by the audio output. In such a case, the output signal of the CD signal processing section 3 is gated by the gate circuit 5 by using a mute signal MUTE from a system controller section 4. When the digital signal recorded on the CD 1 is a digital data signal, the signal is not sent to the D/A converter section 6. Thus, the noise due to data transmission call be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21783187A JPS6462039A (en) | 1987-09-02 | 1987-09-02 | Digital mute circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21783187A JPS6462039A (en) | 1987-09-02 | 1987-09-02 | Digital mute circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6462039A true JPS6462039A (en) | 1989-03-08 |
Family
ID=16710433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21783187A Pending JPS6462039A (en) | 1987-09-02 | 1987-09-02 | Digital mute circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6462039A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6488964A (en) * | 1987-09-30 | 1989-04-03 | Toshiba Corp | Disk player device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5592068A (en) * | 1978-12-29 | 1980-07-12 | Fujitsu Ltd | Voice data composite communication system |
-
1987
- 1987-09-02 JP JP21783187A patent/JPS6462039A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5592068A (en) * | 1978-12-29 | 1980-07-12 | Fujitsu Ltd | Voice data composite communication system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6488964A (en) * | 1987-09-30 | 1989-04-03 | Toshiba Corp | Disk player device |
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