Matsushita Electric Industrial Co., Ltd.

Kazumine Koshi

Toshio Tanaka

Keita Sakai

Noriyuki Saito

Tohru Arakawa

Masaaki Matsui

Koji Sako

Yoshinobu Nakagawa

Masaru Shimizu

Hirofumi Komiya

Shozoh Shiraga

Hideto Sadamori

Naoyuki Takagi

Yuji Doi

Masaaki Yamabayashi

Masayoshi Komori

Kazuto Kume

An antenna device has a first antenna element supporting a low frequency band and a second antenna element supporting a high frequency band. The first antenna element and the second antenna element are disposed so as to face to each other, on the wiring board of a radio device, and at positions separated from each other by a predetermined distance. The distance between the first antenna element and the ground of wiring board is longer than the distance between the second antenna element and the ground of the wiring board. The antenna device supports two frequency bands with the first antenna element and the second antenna element.

Antenna device

An antenna for portable cellular telephone can adjust each of multiple antenna elements efficiently and independently to a predetermined resonance frequency. A first antenna element and second antenna element are mounted on and anchored to one common base. Terminals for feeding power to the first antenna element and the second antenna element are provided respectively. The terminals are coupled to matching circuits. This structure facilitates separate and efficient adjustment of resonance frequency of the first antenna element and the second antenna element.

Antenna for portable cellular telephone

A printing apparatus has a small size that facilitates replacement of rolled paper, removal of jammed paper, etc., and alleviates the likelihood of a paper jam with a considerably simple structure. The printing apparatus comprises a rolled-paper holder (,), which is provided with a first holder (,) for use in carrying out printing on rolled paper (,), and a second holder (,) for use in setting the rolled paper (,). The rolled paper (,) is moved from the second holder (,) to the first holder (,) as a main body of the apparatus is shifted from a paper setting position to a printing work position, thereby facilitating the setting of the rolled paper (,) and removal of jammed paper, since the rolled paper (,) can be temporarily supported by the second holder (,) in order to provide sufficient work space when replacing the rolled paper (,) or removing jammed paper.

Printing apparatus

The present invention aims at providing a printing apparatus of a small size that facilitates replacement of a rolled paper, removal of a jammed paper, etc. and alleviates likeliness of a paper jam with a considerably simple structure. The printing apparatus comprises a rolled-paper holder (,), which is provided with a first holder (,) for use in carrying out printing on a rolled paper (,), and a second holder (,) for use in setting the rolled paper (,), wherein the rolled paper (,) is moved from the second holder (,) to the first holder (,) as a main body of the apparatus is shifted from a paper setting position to a printing work position, thereby facilitating the setting of the rolled paper (,) and removal of a jammed paper, since the rolled paper (,) can be temporarily supported by the second holder (,) in order to provide a sufficient work space when replacing the rolled paper (,) or removing a jammed paper.

Printer

Printing device with cutter

A printer controller for use with a thermal printer. A thermal printer used as a computer terminal printer requires a high printing speed and high print-quality in addition to reducing the load on the computer terminal. The printer controller of the present invention integrates the complicated control functions of the electrical components of a thermal printer, (i.e. thermal-head, motor, and various sensors) into an integrated circuit or a one-chip IC. Printers incorporating this controller attain highly improved and simplified operability and miniaturized dimensions. The printer controller includes a host-interface to receive communication data transmitted from a system including a host-computer, a receiver controller for receiving the output of the host-interface inputted through a data-bus and for controlling the communication data to be supplied to the thermal-head, a head driving data controller which controls the driving data to be supplied to the thermal-head which is controlled according to the temperature and the supply voltage, a motor controller for controlling the paper-feeding motor, a total controller for controlling all of the controllers including the receiver and controller, head driving data controller, and the motor controller through respective dedicated control lines, a memory for storing at least one of the controller procedures, and a printer interface for outputting various signals necessary to drive various devices mounted in the printer.

Printer control circuit and the printer controlled thereby

A thermal line printer is provided in which required printing is carried out by developing a thermal recording paper under heat generated by heat generating elements or by melting a heat-meltable ink under such heat to deposit melted ink on a recording paper sheet. The thermal line printer includes external memory means having a function to store print data for two or more dot lines as corrective print data and capable of asynchronously performing its write and read functions. Furthermore, both print data processing and control of the external memory means are carried out mainly by a hardware arrangement, whereby the thermal line printer is inexpensive, provides high print quality, and has high-speed printing capability.

Thermal line printer with external memory means

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Tsuyama, Japan

Kazumine Koshi