Oral readout rangefinder

Details Oral readout rangefinder Oral readout rangefinder

1984-09-10

1989-09-26

Harkcom, Gary V.

Electrical audio signal processing systems and devices

Monitoring/measuring of audio devices

Loudspeaker operation

367116, 364561, G10L 504, G01B 702, G01S 1508

Patent

active

048706876

ABSTRACT:
A system for measuring the distance to an object and orally announcing the measured distance by use of a speech synthesizer. The system includes a transmitter, a receiver, and a transmit/receive transducer operating at an ultrasonic frequency. The round trip time from generation of impulse to receipt of the echo reflected from an object is measured using a counter. The counter directly accesses a memory that contains the information needed to select the correct combination of words to be synthesized for the corresponding measured distance. The required vocabulary producing natural sounding speech is stored in a second memory within the speech synthesizer.

REFERENCES:
patent: 3321737 (1967-06-01), Russell
patent: 3528053 (1970-09-01), Rubin
patent: 3942149 (1976-03-01), Westfall
patent: 4135188 (1979-01-01), Bickley, Jr. et al.
patent: 4234941 (1989-11-01), Welland, Jr. et al.
patent: 4266096 (1981-05-01), Inoue et al.
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patent: 4400582 (1983-08-01), Takeda et al.
patent: 4439846 (1984-03-01), Rodriguez
patent: 4672590 (1987-06-01), Tendler
patent: 4727310 (1988-02-01), Hashimoto et al.
Smith, "Single Chip Speech Synthesizers", Computer Design, vol. 17, No. 11, Nov. 1978, pp. 188-192.
Master Specialties Company, "Give Your Equipment a Voice in its Operation", Oct. 1974, pp. 1-4.

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