JPS6417511A - Digital muting circuit - Google Patents
Digital muting circuitInfo
- Publication number
- JPS6417511A JPS6417511A JP17418387A JP17418387A JPS6417511A JP S6417511 A JPS6417511 A JP S6417511A JP 17418387 A JP17418387 A JP 17418387A JP 17418387 A JP17418387 A JP 17418387A JP S6417511 A JPS6417511 A JP S6417511A
- Authority
- JP
- Japan
- Prior art keywords
- muting
- data
- level
- sound data
- input terminals
- 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
Abstract
PURPOSE:To attain on-muting and off-muting of PCM sound data by controlling the level of digital sound data consisting of N bits by a level control means consisting of N multiplexers. CONSTITUTION:Reproduced PCM sound data (i) consisting of N bits are sent to an input terminal 12 in each word synchronously with a sampling clock (f) and supplied to the input terminals I1 of the multiplexers 111-11N. Each multiplexer selects a signal to be outputted from its output terminal Y out of signals inputted to its input terminals I1-I4 in accordance with data input signals supplied to its input terminals A, B. At the time of on-muting, output PCM sound data (k) are not immediately muted to the minimum level but are gradually attenuated every sampling clock and reached to the minimum level. At the time of off-muting, the data (k) is gradually restored from the minimum level to the level of the data (i).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17418387A JPS6417511A (en) | 1987-07-13 | 1987-07-13 | Digital muting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17418387A JPS6417511A (en) | 1987-07-13 | 1987-07-13 | Digital muting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6417511A true JPS6417511A (en) | 1989-01-20 |
Family
ID=15974167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17418387A Pending JPS6417511A (en) | 1987-07-13 | 1987-07-13 | Digital muting circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6417511A (en) |
-
1987
- 1987-07-13 JP JP17418387A patent/JPS6417511A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| USRE32278E (en) | Muting circuit | |
| JPS57173207A (en) | Storage device for level correction information | |
| JPS5730108A (en) | Digital signal processing circuit | |
| KR900019352A (en) | Digital Volume Deterioration Prevention Circuit | |
| JPS5588452A (en) | Digital signal switching circuit for diversity receiver for digital radio communication | |
| JPS6417511A (en) | Digital muting circuit | |
| JPS5489511A (en) | Level regulator on digital control system | |
| ATE141730T1 (en) | TONE CONTROLS FOR DIGITAL SIGNALS | |
| KR880005603A (en) | Digital muting circuit | |
| JPS5762650A (en) | Dial device for telephone | |
| KR920017511A (en) | Integrated speakerphone circuit and serial port interface for speakerphone | |
| JPS56106175A (en) | Miniature electronic apparatus with recording function | |
| JPS5472949A (en) | Multiplexer circuit | |
| JPS5487142A (en) | Lsi circuit | |
| JPS5624897A (en) | Attenuation quantity set system | |
| JPS56164611A (en) | Forced released circuit for tone control | |
| JPS5789312A (en) | Muting circuit | |
| KR940004183Y1 (en) | Speaker-sound control circuit | |
| JPS6416013A (en) | Clock distribution circuit | |
| JPS5779772A (en) | Fadar circuit | |
| JPS5654142A (en) | Timing generating circuit | |
| JPS561697A (en) | Mixing process circuit for digital signal | |
| JPS6437600A (en) | Voice file apparatus | |
| JPS6437666A (en) | Digital signal processor | |
| JPS6436111A (en) | Sound volume control method |