JPS57184333A - Noise eliminating device - Google Patents
Noise eliminating deviceInfo
- Publication number
- JPS57184333A JPS57184333A JP6981681A JP6981681A JPS57184333A JP S57184333 A JPS57184333 A JP S57184333A JP 6981681 A JP6981681 A JP 6981681A JP 6981681 A JP6981681 A JP 6981681A JP S57184333 A JPS57184333 A JP S57184333A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- input
- noise
- circuit
- substitute
- 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
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
- H04B14/046—Systems or methods for reducing noise or bandwidth
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6981681A JPS57184333A (en) | 1981-05-09 | 1981-05-09 | Noise eliminating device |
US06/373,437 US4587620A (en) | 1981-05-09 | 1982-04-30 | Noise elimination device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6981681A JPS57184333A (en) | 1981-05-09 | 1981-05-09 | Noise eliminating device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57184333A true JPS57184333A (en) | 1982-11-13 |
Family
ID=13413656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6981681A Pending JPS57184333A (en) | 1981-05-09 | 1981-05-09 | Noise eliminating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57184333A (ja) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5549042A (en) * | 1978-10-04 | 1980-04-08 | Nippon Telegr & Teleph Corp <Ntt> | Sound momentary break interpolating receiver |
-
1981
- 1981-05-09 JP JP6981681A patent/JPS57184333A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5549042A (en) * | 1978-10-04 | 1980-04-08 | Nippon Telegr & Teleph Corp <Ntt> | Sound momentary break interpolating receiver |
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