Electronic conversions of speech
United States Patent 3294918
US Patent References:
Method and system of speech transmission
- - 1998824
Frequency sensitive device
- - 2956227
Vocoder transmission system
- - 2857465
Frequency sensitive circuit
- - 3010066
Monostable multivibrator responsive to positive and negative trigger pulses from single source
- - 3021488
Method and system of speech transmission
- - 1998824
Frequency sensitive device
- - 2956227
Vocoder transmission system
- - 2857465
Frequency sensitive circuit
- - 3010066
Monostable multivibrator responsive to positive and negative trigger pulses from single source
- - 3021488
Inventors:
Nathan, Gold
Publication Date:
12/27/1966
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Assignee:
POLAROID CORP
Primary Class:
Other Classes:
375/271, 455/42, 375/238
US Patent References:
| 3136949 | Speech modulation system utilizing two spaced frequencies |