Mos image sensor

Abstract

Abstract PURPOSE: To reduce the integrating time of the optical information with no inconvenience, by providing the resetting gate switch and then carrying out the resetting of each photo detector with the control via the resetting address means. CONSTITUTION: Shift registers SH and SH' are driven by driving clocks ϕ 1 and ϕ 2 , and resetting start pulse VS' is applied to register SH' in the proper timing and in the state under which reading start pulse VS is applied to signal reading shift register SH with cycle T. As a result, outputs OR 1 ∼OR n of register SH' turn to L in sequence and in synchronization with clocks ϕ 1 and ϕ 2 by the shift of pulse VS', and then resetting analog switches AS 1 ∼AS n are turned on in sequence. Accordingly, each of photo diodes D 1 ∼D n are charged again to erase the so far storage information. After this, the photoelectric charge is discharged in accordance with the volume of the incident rays, and then the scanning output can be obtained in the time-series way and through output terminal OT when pulse VS is applied to register SH. And the integrating time of diodes D 1 ∼D n feature the time from the rise of pulse VS' to the fall of pulse VS. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Toshio Sakane
• 👤 Tokuichi Tsunekawa

Bibliographic Details