Fujitsu Corporation

Tetsuo Aoki

Hisashi Yamaguchi

Fumitaka Asami

Tetsuya Kobayashi

Toyoshi Kawada

Kazuhiro Takahara

Masami Oda

Tadahisa Yamaguchi

Hiroyuki Miyata

Akira Horikawa

Kouichi Masaki

Akihiko Shigeta

Kiyoshi Ohi

Masanori Kawaguchi

Kiyoshi Inoue

Yasuhiro Tameie

Hirotoshi Umemura

Naruhito Yamamoto

Hiroshi Aihara

Atsurou Noguchi

Masahiko Senda

Terminal equipment for electronically making patent and utility patent applications. The terminal equipment converts various formats of text data generated by an external device into the internal format of the terminal equipment, retrieves the converted text data, merges the text data with a procedure, and transmits the procedure. The merging operation in which image data is merged with text data is simplified whereby the operator can make applications with a simple operation without special skill and knowledge when an application document is transmitted and received on line. The terminal equipment includes a text converting portion for converting the external format of text data into the internal format of the terminal equipment and for retrieving the converted text data, a procedure generation processing portion for merging the retrieved text data with a procedure, a text processing portion and paragraph number assigning portion for editing the merged text and image data within the terminal equipment, a text checking portion for checking the text of the edited procedure document, a transmission file generating portion for converting the format of the checked procedure document into a transmission format, and an online application portion for transmitting the data in the transmission format to the outside of the terminal equipment.

Terminal equipment for merging imaging data and text data, and transmitting and receiving the same on-line

A method and a system for driving an electro-luminescence display panel of a matrix type has a compensation pulse applied to all the cells prior to or in the front of a pedestal pulse on every frame cycle. The level of the compensation pulse is higher than the pedestal pulse but low enough not to light the cells by itself. The duration of the compensation pulse is long enough to saturate charge polarization in the EL material of the cell, as a dielectric, at the applied voltage. Therefore, brightness of the lighted cell is kept constant regardless of the number of lighted cells on the same data electrode. Each of two power-receiving terminals of push-pull scan drivers is connected to a pulse generator respectively. One of the two power-receiving terminals may be floated from the pulse generator while data pulse is applied to the data electrodes. This configuration prevents damage of the CMOS drivers by latch-up caused therein, as well as reducing power consumption produced by charging current of the data pulses into non-lighted cells.

Method and a system for driving a display panel of matrix type

A data driver circuit of TFT-LCD having a plurality of power source voltage terminals with different voltage levels, an output terminal for providing a voltage to the TFT-LCD, a plurality of analog switches with load resistances provided between one of the source voltage terminals and the output terminal and having a switching terminal, and a voltage selection circuit for transmitting an ON signal to a selected one or more of the respective switching terminals of the analog switches. When an individual analog switch is turned ON, the corresponding source voltage value is supplied to the output terminal of the driver circuit and when two or more analog switches are selectively turned on, a combination of the voltage levels of the respective source voltage is associated with those switches which are turned ON is produced as the driver circuit output voltage, thereby affording a greater number of gray levels as the driver circuit output voltage levels than the number of power source voltage levels.

Data driver circuit of liquid crystal display for achieving digital

A synchronous separation circuit used in a television video circuit for generating a horizontal synchronizing signal and a vertical synchronizing signal from a composite synchronizing signal has: a unit for generating a clock signal used as a reference signal and having a frequency higher than the frequency of the horizontal synchronizing signal; a unit for counting the clock signal from a front edge of a pulse contained in the composite synchronizing signal; a unit for obtaining a horizontal synchronous separation and for determining a counting term and outputting the horizontal synchronizing signal after the counting unit counts from the front edge of the horizontal synchronizing signal to a predetermined number; and a unit for obtaining a vertical synchronous separation and for latching the composite synchronizing signal based on an output of the counting unit, separate the vertical synchronizing signal from the composite synchronizing signal.

Synchronous separation circuit

Growing community of inventors

Kawasaki, Japan

Tetsuo Aoki