Shift register circuit with multiple, tapped outputs having pull-down transistors

Claim 1

A signal translating circuit for generating plural pulse outputs in positions that are shifted time sequentially, said signal translating circuit comprising: an input terminal supplied with an input signal; first and second clock terminals supplied with first and second clock signals, respectively, said first and second clock signals having different phases from each other; plural translating stages connected in series to said input terminal, each stage including a source follower transistor having a gate, a source and a drain, said drain being connected to one of said first and second clock terminals, and a bootstrap capacitor formed between said gate and source; and a transmission gate transistor having a gate, a source and a drain, the drain of said transmission gate transistor being connected to the source of said source follower transistor, the gate of said transmission gate transistor being connected to receive an enabling potential, and the source of said transmission gate transistor being connected to the gate of the source follower transistor of a succeeding stage; plural output terminals where said plural pulse outputs appear, said output terminals being respectively connected to the sources of the source follower transistors; means for connecting said first clock terminal to the drains of said source follower transistors of alternate stages and for connecting said second clock terminal to the drains of said source follower transistors of the remaining stages; a switching device connected between each output terminal and ground and actuating means in each stage for turning on said switching device, said actuating means receiving the pulse output of the succeeding output terminal and generating a control signal in response thereto for turning on said switching device; and reset means in each stage for resetting said control signal, said reset means being controlled by the pulse output of the preceding output terminal.