Information signal transmitting system
US3949297A · kind A · utility
10Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1974 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Jul 10, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J9/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system for transmitting information and accomplishing control including a transmitter and at least one receiver in which the transmitter produces an ultrasonic wave or an electrical signal and includes a circuit for modulating the ultrasonic wave or electrical signal as a function of a time interval indicative of the control signal. The modulation is varied as an exponential function so as to assure more accurate reception and decoding of the intelligence by the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.