Signal delay means using bucket brigade and sample-and-hold circuits

Abstract From the Canadian patent

The present invention relates to an improved signal delay circuit. In both the transmit and receive circuits of FM communications systems it, is often necessary to delay a particular signal in order to improve the performance of the system. Prior art delay circuits are undesirable because of the high cost of elaborate generators filters and phase, linearity compensators required to eliminate their associated noise and resulting signal degradation. The present invention provides an improved delay circuit having low insertion loss and low phase distortion characteristics. This is accomplished by a bucket brigade device for sampling the signal and time delaying the samples a sample-and-hold …