Abstract:
A horizontal register transfer pulse generator includes: phase adjuster generating an output signal, from reference signal; and horizontal blanking period generator based on output signal, reference signal, and horizontal blanking pulse, wherein horizontal blanking period generator includes: delay masking pulse generator generating delay masking pulse delayed by predetermined phase relative to masking pulse generated on horizontal blanking pulse inputted into horizontal blanking period generator; and determination means determining phase difference between output signal and reference signal, when phase difference between output signal and reference signal is less than predetermined phase, horizontal blanking period generator combines masking pulse with output signal to generate horizontal register transfer pulse with horizontal blanking period, and when phase difference between output signal and reference signal is equal to or greater than predetermined phase, horizontal blanking period generator combines delay masking pulse with output signal to generate horizontal register transfer pulse with horizontal blanking period.
Abstract:
Disclosed herein is a timing signal generating circuit including, a memory for storing rising edge position data and falling edge position data of pulses of a timing signal to be generated, and a pulse generator for generating the timing signal on a basis of the rising edge position data and the falling edge position data, wherein the memory stores pulse count data indicating a number of pulses of the timing signal, and the pulse generator includes rising edge signal generating circuits for generating rising edge signals on a basis of respective pieces of the rising edge position data, falling edge signal generating circuits for generating falling edge signals on a basis of respective pieces of the falling edge position data, an active control circuit for setting in an active state the rising edge signals and the falling edge signals generated by the rising edge signal generating circuits and the falling edge signal generating circuits that correspond in number to the pulse count data, and a pulse generating circuit for generating the timing signal on a basis of the rising edge signals and the falling edge signals set in the active state by the active control circuit.
Abstract:
Disclosed herein is a switch for turning on/off the connection between a first terminal and a second terminal. The switch includes a first transistor circuit configured from two transistors connected in series between the first terminal and the second terminal; and a second transistor circuit having a gate terminal connected to source terminals of the two transistors and a source terminal connected to gate terminals of the two transistors. The connection between the first terminal and the second terminal is changed over between on and off states by changing over a potential to the source terminal of the second transistor circuit between high and low levels.
Abstract:
A transfer pulse generator circuit for outputting a vertical register transfer pulse includes transfer pulse control circuit for controlling to set rise and fall timings of the vertical register transfer pulse to desired timings in a predetermined period.