US4769844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voice recognition system having a check scheme for registration of reference data
Assignee: Ricoh Co Ltd
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Filing: 1987-04-03
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Granted: 1988-09-06
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Expires: 2007-04-03
Abstract
Abstract A voice recognition system includes a microphone for converting a voice in the form of pressure waves into an electrical voice signal and a keyboard for inputting the phonetic spelling of the voice. A check mechanism is connected to the keyboard to determine whether or not the voice has a predetermined sound element, which is difficult to be detected, such as /u/, /i/, /n/ and explosives like /p/, /t/, /k/ and /b/, at or near the end thereof. If the check mechanism has determined the presence of such a predetermined sound element, then it checks the corresponding voice pattern to see whether the corresponding component is present in the pattern or not. If not, a warning may be issued to request reinputting of the voice, thereby insuring the fact that the voice pattern to be registered as a reference voice pattern is always accurate.
Inventors
- 👤 Junichiroh Fujimoto
- 👤 Tetsuya Muroi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:42
CPC Classifications
G; G10; G10L; G10L15/00
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
151 words
A voice recognition system comprising: first input means for inputting a voice in the form of pressure waves and converting said voice into an electrical signal; processing means for processing said electrical signal to produce a voice pattern of a predetermined format; second input means for inputting an identification information of said voice; storing means for storing said voice pattern as a reference pattern selectively; and checking means for checking said identification information to determine whether or not said voice has a predetermined sound element at or near the end thereof, thereby causing said voice pattern to be stored in said storing means if said voice has been found to have no predetermined sound element and then to check said voice pattern to determine whether or not said voice pattern has a corresponding component of said predetermined sound element if said voice has been found to have said predetermined sound element.
Claim 2
Dependent Claim
151 words
A voice recognition system comprising: first input means for inputting a voice in the form of pressure waves and converting said voice into an electrical signal; processing means for processing said electrical signal to produce a voice pattern of a predetermined format; second input means for inputting an identification information of said voice; storing means for storing said voice pattern as a reference pattern selectively; and checking means for checking said identification information to determine whether or not said voice has a predetermined sound element at or near the end thereof, thereby causing said voice pattern to be stored in said storing means if said voice has been found to have no predetermined sound element and then to check said voice pattern to determine whether or not said voice pattern has a corresponding component of said predetermined sound element if said voice has been found to have said predetermined sound element.
Claim 3
Dependent Claim
38 words
The system of claim 1 wherein said checking means issues a request of reinputting said voice into said first input means if said voice pattern has been found to have no corresponding component of said predetermined sound element.
Claim 4
Dependent Claim
30 words
The system of claim 1 further comprising averaging means for averaging a plurality of said voice patterns to define an average voice pattern before being stored into said storing means.
Claim 5
Dependent Claim
14 words
The system of claim 1 wherein said predetermined sound element is a selected vowel.
Claim 6
Dependent Claim
13 words
The system of claim 4 wherein said selected vowel is /u/ or /i/.
Claim 7
Dependent Claim
13 words
The system of claim 1 wherein said predetermined sound element is an explosive.
Claim 8
Dependent Claim
28 words
The system of claim 1 wherein said first input means includes an audio-electro transducer for converting a voice in the form of pressure waves into an electrical signal.
Claim 9
Dependent Claim
11 words
The system of claim 7 wherein said transducer is a microphone.
Claim 10
Dependent Claim
36 words
The system of claim 1 wherein said second input means includes a keyboard and said identification information is a phonetic spelling of said voice, whereby said keyboard converts said phonetic spelling into a string of codes.
Claim 11
Dependent Claim
28 words
The system of claim 9 wherein said checking means receives said string of codes to determine the presence or absence of said predetermined sound element in said voice.
Claim 12
Dependent Claim
66 words
The system of claim 1 further comprising: selecting means for selecting a registration mode or a recognition mode; and matching means for matching said voice pattern with each of said reference patterns stored in said storing means while keeping said checking means inoperative during said recognition mode, whereby one of said reference patterns which is most similar to said voice pattern is selected as an output.
Claim 13
Dependent Claim
156 words
A voice recognition system comprising: first input means for inputting a voice in the form of pressure waves and converting said voice into an electrical signal; processing means for processing said electrical signal to produce a voice pattern of a predetermined format; second input means for inputting an identification information of said voice; first storing means for storing said voice pattern as a reference pattern selectively; second storing means for storing at least one explosive voice pattern; checking means for checking said identification information to determine whether or not said voice has a voiceless interval near the end thereof and if so to determine whether or not said voice pattern has said voiceless interval near the end thereof; and coupling means for coupling said voice pattern with a corresponding explosive voice pattern stored in said second storing means to define a complete voice pattern before being stored in said first storing means as a reference pattern.
Claim 14
Dependent Claim
156 words
A voice recognition system comprising: first input means for inputting a voice in the form of pressure waves and converting said voice into an electrical signal; processing means for processing said electrical signal to produce a voice pattern of a predetermined format; second input means for inputting an identification information of said voice; first storing means for storing said voice pattern as a reference pattern selectively; second storing means for storing at least one explosive voice pattern; checking means for checking said identification information to determine whether or not said voice has a voiceless interval near the end thereof and if so to determine whether or not said voice pattern has said voiceless interval near the end thereof; and coupling means for coupling said voice pattern with a corresponding explosive voice pattern stored in said second storing means to define a complete voice pattern before being stored in said first storing means as a reference pattern.
Claim 15
Dependent Claim
22 words
The system of claim 12 wherein said corresponding explosive voice pattern is combined with said voice pattern with a predetermined gap therebetween.
Claim 16
Dependent Claim
14 words
The system of claim 12 wherein said first input means includes an audio-electro transducer.
Claim 17
Dependent Claim
12 words
The system of claim 14 wherein said audio-electro transducer is a microphone.
Claim 18
Dependent Claim
24 words
The system of claim 12 wherein said second input means includes a keyboard and said identification information is a phonetic spelling of said voice.
Claim 19
Dependent Claim
119 words
The system of claim 12 further comprising: selecting means for selecting one of a first and second registration modes and a recognition mode, said selecting means causing said processing means and said second storing means to be connected to said coupling means when said first registration mode is established and causing said processing means to be connected to said second storing means when said second registration mode is established; matching means for matching said voice pattern with each of said reference patterns stored in said first storing means while keeping said checking means inoperative during said recognition mode; and means for determining which of said reference patterns in said first storing means is most similar to said voice pattern.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |