3621402 is referenced by 97 patents and cites 7 patents.

A sampled data filter is disclosed comprising a plurality of amplifiers interconnected by delay units and feedback resistors. Each delay unit comprises the cascade connection of actuable switches and storage capacitors. The values of the capacitors and feedback resistors are preselected to obtain a desired transfer function and to nullify the effects of residual capacitor charge.

Title
Sampled data filter
Application Number
05/060,558
Publication Number
3621402
Application Date
August 3, 1970
Publication Date
November 16, 1971
Inventor
William Allen Gardner
Agent
William L Keefauver
R J Guenther
Assignee
Bell Telephone Laboratories
IPC
H03k 23/00
H03H 15/02
H03H 15/00
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