DELAYED CODED SQUELCH CIRCUITRY FOR USE WITH RADIO RECEIVERS
Original Publication Date: 1980-Aug-01
Included in the Prior Art Database: 2001-Oct-10
The main purpose of the delayed coded squelch circuitry is to unsquelch a radio receiver immediately upon detection of the proper RF carrier, and squelch the radio receiver again if the proper squelch code has not been detected after a predetermined period of time. This time period may be equal to the time it takes the normal coded squelch decoder in the receiver to detect a correct squelch code.