Sony Corporation

Nippon Telegraph and Telephone Corporation

Copal Company Limited

Koichi Katagiri

Satoru Maeda

Ikuo Taniguchi

Toshimasa Fujiwara

Satomi Nanaumi

Yoshihiro Hanamoto

The printer is for printing a continuous fan-folded paper web having series of perforations at each side edge thereof which is adapted to be fed into the printer from the bottom of the printer. The printer comprises an upper housing member swingably supported by a lower housing member so that the upper housing member is movable between a closed position for the printing operation and an opened position at which an accessible space is provided between the bottom of the upper housing member and the lower housing member. The upper housing member includes a printing mechanism and a pin-tractor mechanism for feeding the paper web a portion of which extends outwardly downwardly from the bottom of the upper housing member. The lower housing member has a feed-in opening at the bottom thereof for the paper web. Thus, the threading and advancing of the paper web into the printing mechanism by the pin-tractor mechanism are facilitated by swinging the upper housing member to the opened position providing the accessible space between the bottom of the upper housing member and the lower housing member where access to the pin-tractor mechanism is permitted.

Apparatus to facilitate initial paper loading

A signal generator circuit for a television receiver employed in a videotex or CAPTAIN system comprises a reference signal oscillator for producing a reference signal and a synchronizing signal generator for generating a horizontal synchronization signal synchronized with the reference signal. A frequency divider is responsive to the reference signal for producing a color sub-carrier signal. A phase-locked loop is responsive to the sub-carrier signal and includes a voltage-controlled oscillator. The voltage-controlled oscillator produces an output signal synchronized with the sub-carrier signal and having a series of rising edges. A rising edge of the sub-carrier signal periodically coincides with a rising edge of the signal from the voltage-controlled oscillator. A detector detects a time when a rising edge of the sub-carrier signal coincides with a rising edge of the output signal of the voltage-controlled oscillator, and a clock signal is then generated synchronized with the output signal of the voltage-controlled oscillator and having a series of falling edges. The horizontal synchronization signal generator and the clock signal generator are controlled so as to ensure that the rising edge of the horizontal synchronization signal coincides with a falling edge of the clock signal. This ensures an accurate count of the pulses for determining the horizontal position of a display by the receiver and prevents horizontal jitter in the display.

Signal generator circuit

Growing community of inventors

Tokyo, Japan

Koichi Katagiri