Of BBD's & CCS's

[puretube]

*Differential Bucket-Brigade Circuit:
https://www.pat2pdf.org/patents/pat3819953.pdf
(Puckette/Butler)

*System for Nullifying Signal Processor Distortions:
https://www.pat2pdf.org/patents/pat3906384.pdf
(Schiffmann)

If above links don`t work anymore, just put the patent-number:
3819953 or: 3906384 (or any other US-patent number)
into the outlined white "Enter Number(s):" box that shows upon clicking this link:
https://www.pat2pdf.org/
And then click: "Fetch Patent" ...

Further literature cc. BBD-related patents:
US3289010
US3546490 (Sangster 1967)
US3471711 (shiftreg)
GB1273181 (Sangster 1969)
US3643106 (CTD)
US3666972 (Sangster 1970)
US3671771 (Sangster 1970)
US3676711 (RCA MOS)
US3676863
US3737683 (Sangster 1972)
US3740577
US3745383 (Sangster 1972)
US3746883 (RCA n+1)
US3810126 (Butler+Puckette recirc.)
US3819953* (Butler+Puckette) DIFF
US3819954
US3831041 (BELL - CCS)
US3858232
US3906384* (Schiffmann)
US3912944
US3916219
US3918081
US3927418 (Sony)
US3939364 (ITT INV+Anti-parallel)
US3955100
US3983409 (ITT - CCS)
US3991322 (S+H)
US3999171 (recirc.)
US4031490 (mos-asp)
US4047053 (+A/D)
US4134029 (auto-corr.)
US4136287 (offset-comp)
US4138666
US4156152 (Butler+Puckette)
US4254345 (output)
US4271366 (Jap. - offset-comp)
US4356407 (inputcap)
US4455666
US4506288 (RCA - S+H)
US4803709 (S+H output)
US5140623 (bias)
US5210777 (bias)
US5274687 (source-foll)
US5291083 (limit)
US5406507 (lo-Cin)

[PRR]

If above links don`t work anymore, just put the patent-number:
3819953 or: 3906384 (or any other US-patent number)
into the outlined white "Enter Number(s):" box that shows upon clicking this link:
https://www.pat2pdf.org/
And then click: "Fetch Patent" ...

Google Patents  https://patents.google.com/  is another way to fetch patent PDFs. With preview, and many non-US patents, and some meta-data (cites, prior art) on the side.
Overview: https://en.wikipedia.org/wiki/Google_Patents