Methods and apparatus for compensating for charge transfer ineff

Details Methods and apparatus for compensating for charge transfer ineff Methods and apparatus for compensating for charge transfer ineff

1978-08-28

1980-09-23

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency or time domain filters and delay lines utilizing...

307221D, 357 30, 358213, H03H 1704, H03K 514, G11C 2702, G11C 1928

Patent

active

042245850

ABSTRACT:
Methods and apparatus for compensating for charge transfer inefficiency in imaging and other variable length charge transfer devices are disclosed. In accordance with the method a recursive filter is used to compensate for the transfer inefficiency of the device with the coefficients of the recursive filter being dependent upon the pixel position and the inefficiency per transfer, or more particularly upon the inefficiency per transfer and the number of transfers required to transfer from the pixel position to the output of the charge transfer device. In addition, a variable gain control is used to restore the amplitude of the output signal dependent upon the pixel position and inefficiency per transfer. Substantial compensation is achieved utilizing recursive filter coefficients linearly increasing with the number of transfers required, with an automatic gain control amplifier also linearly increasing in gain proportional to the number of transfers required to restore signal amplitude. Test results and apparatus for practicing the invention are also disclosed, as are other compensation techniques.

REFERENCES:
patent: 3868516 (1975-02-01), Buss
patent: 3946248 (1976-03-01), Buss
patent: 3999171 (1976-12-01), Parsons
patent: 4047053 (1977-09-01), Ley et al.

Affiliated with

Also associated with

Rating

Methods and apparatus for compensating for charge transfer ineff does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and apparatus for compensating for charge transfer ineff, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for compensating for charge transfer ineff will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-646893