Abstract To achieve a variable time delay of an information signal wherein the amount of delay can be continuously varied in response to a control signal, a plurality of paralleled sample and hold networks are arranged to receive the information signal and perform the following operations thereon. First, the magnitude of the information signal is sequentially sampled by a plurality of separate sampling gates, wherein each gate is provided with a separate storage capacitor for holding the sampled magnitude for the time interval between successive operations of the associated gate. The stored signal magnitudes are in turn sampled in succession by a plurality of separate output sampling gates wherein the resulting output signals therefrom are fed to a low-pass filter for eliminating high frequency signal components introduced by operation of the sampling gates. As the time duration between successive operations of the input and output sampling gates determines the amount of delay introduced into the information signal, a plurality of voltage controlled delay means are connected between associated sampling gates and are responsive to the instantaneous amplitude of the control signal to provide continuous adjustment of the gate-timing intervals.
An electrically controlled variable signal delay network comprising: a plurality of input-sampling gates jointly connected to receive an input signal which is to be delayed and being operable to sample the instantaneous magnitude of such signal; electrical storage means having a plurality of storage components each connected to a separate associated one of said input-sampling gates for storing the associated instantaneous signal magnitude; a plurality of output-sampling gates each connected to a separate associated one of said storage components and being operable to sample the instantaneous signal magnitude carried by an associated storage means; circuit means adapted to receive a delay control signal and having an electrical generator connected to and sequentially operating each gate of said plurality of input gates and having electrical delay means responsive to operation of each such sequentially operated input gate to operate an associated gate of said plurality of output gates after an interval determined by said control signal; and output means summing the signals issued by said output gates whereby a controlled delay is provided between the input signal and an output signal developed by said output means.
Claim 2
Dependent Claim
185 words
An electrically controlled variable signal delay network comprising: a plurality of input-sampling gates jointly connected to receive an input signal which is to be delayed and being operable to sample the instantaneous magnitude of such signal; electrical storage means having a plurality of storage components each connected to a separate associated one of said input-sampling gates for storing the associated instantaneous signal magnitude; a plurality of output-sampling gates each connected to a separate associated one of said storage components and being operable to sample the instantaneous signal magnitude carried by an associated storage means; circuit means adapted to receive a delay control signal and having an electrical generator connected to and sequentially operating each gate of said plurality of input gates and having electrical delay means responsive to operation of each such sequentially operated input gate to operate an associated gate of said plurality of output gates after an interval determined by said control signal; and output means summing the signals issued by said output gates whereby a controlled delay is provided between the input signal and an output signal developed by said output means.
Claim 3
Dependent Claim
68 words
The network as defined in claim 1, said generator having a plurality of outputs each being connected to a separate one of said plurality of input gates for sequential and periodic operation thereof, said delay means having a plurality of electrical control delay devices individually coupled between said generator outputs and said output gates and said devices, each having a control input connected to receive said control signal.
Claim 4
Dependent Claim
32 words
The network as defined in claim 2, said generator having a constant period between sequential operations of said input gates and said delay means having a delay interval greater than said period.
Claim 5
Dependent Claim
29 words
The network as defined in claim 1, said output means comprising a frequency filter whereby frequency components introduced by operation of said gates are filtered from said output signal.