JPS5491009A - Audio recognition unit - Google Patents
Audio recognition unitInfo
- Publication number
- JPS5491009A JPS5491009A JP15796977A JP15796977A JPS5491009A JP S5491009 A JPS5491009 A JP S5491009A JP 15796977 A JP15796977 A JP 15796977A JP 15796977 A JP15796977 A JP 15796977A JP S5491009 A JPS5491009 A JP S5491009A
- Authority
- JP
- Japan
- Prior art keywords
- noise
- voice
- ambient
- signal
- strong
- 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 prevent the error recognition of voice data with a strong ambient noise and ambient noise superposed by detecting and rejecting the ambient noise.
CONSTITUTION: This unit consists of voice collecting microphone 10, voice period determination part 20 which determines a voice period by examining the amplitude level of an input signal, recognition processing part 30 which determines a recognition result by analyzing and discriminating a signal in the voice period, ambient- noise collecting microphone 40, noise detection part 50 which detects a strong noise signal by examining the amplitude level of a noise signal, and rejection processing part 60 which rejects the recognition result determined by processing part 30 when the strong noise is detected in the voice period. As a result, when a noise is superposed upon an input voice, the generation of an ambient noise is detected and it is rejected.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15796977A JPS5491009A (en) | 1977-12-28 | 1977-12-28 | Audio recognition unit |
CA318,539A CA1116300A (en) | 1977-12-28 | 1978-12-22 | Speech recognition system |
US05/974,274 US4239936A (en) | 1977-12-28 | 1978-12-28 | Speech recognition system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15796977A JPS5491009A (en) | 1977-12-28 | 1977-12-28 | Audio recognition unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5491009A true JPS5491009A (en) | 1979-07-19 |
Family
ID=15661389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15796977A Pending JPS5491009A (en) | 1977-12-28 | 1977-12-28 | Audio recognition unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5491009A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5640898A (en) * | 1979-09-12 | 1981-04-17 | Hitachi Ltd | Voice input device |
JPS5732500A (en) * | 1980-08-05 | 1982-02-22 | Tokyo Shibaura Electric Co | Voice recognizing device |
JPS57177199A (en) * | 1981-04-25 | 1982-10-30 | Tokyo Shibaura Electric Co | Input device for sound |
JPS5870285A (en) * | 1981-10-22 | 1983-04-26 | 日産自動車株式会社 | Voice recognition equipment for vehicle |
JPS5885498A (en) * | 1981-11-18 | 1983-05-21 | 株式会社デンソー | Voice input unit |
JPS5922100A (en) * | 1982-07-28 | 1984-02-04 | シャープ株式会社 | Voice recognition equipment |
-
1977
- 1977-12-28 JP JP15796977A patent/JPS5491009A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5640898A (en) * | 1979-09-12 | 1981-04-17 | Hitachi Ltd | Voice input device |
JPS6147438B2 (en) * | 1979-09-12 | 1986-10-18 | Hitachi Ltd | |
JPS5732500A (en) * | 1980-08-05 | 1982-02-22 | Tokyo Shibaura Electric Co | Voice recognizing device |
JPS57177199A (en) * | 1981-04-25 | 1982-10-30 | Tokyo Shibaura Electric Co | Input device for sound |
JPS5870285A (en) * | 1981-10-22 | 1983-04-26 | 日産自動車株式会社 | Voice recognition equipment for vehicle |
JPH022157B2 (en) * | 1981-10-22 | 1990-01-17 | Nissan Motor | |
JPS5885498A (en) * | 1981-11-18 | 1983-05-21 | 株式会社デンソー | Voice input unit |
JPH0247753B2 (en) * | 1981-11-18 | 1990-10-22 | Nippon Denso Co | |
JPS5922100A (en) * | 1982-07-28 | 1984-02-04 | シャープ株式会社 | Voice recognition equipment |
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