Number | Name | Date | Kind |
---|---|---|---|
3758794 | Kosonocky | Sep 1973 | |
3809923 | Esser | May 1974 | |
3814955 | Itoh et al. | Jun 1974 | |
3819958 | Gosney | Jun 1974 | |
3877056 | Bailey | Apr 1975 |
Entry |
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Smith et al., "Active Bandpass Filtering with Bucket Brigade Delay Lines" in IEEE Journal of Solid-State Circuits, vol. SC-7, No. 5 Oct. 1972; pp. 421-425. |