Seiko Epson Corporation

Isuke Karaki

Makoto Inoguchi

Michihiro Nagaishi

Masahiro Kitano

Osamu Honda

Satomi Yoshioka

A transmission device that includes: a radio signal transmission processing section that transmits a radio carrier wave overlaid with transmitting information after being modulated by pulse position modulation; an optical signal transmission processing section that transmits an optical carrier wave overlaid with the transmitting information after being modulated by the pulse position modulation; and a baseband processing section that modulates the transmitting information in accordance with the pulse position modulation of shared use with the radio signal transmission processing section and the optical signal transmission processing section.

Communications device

When a correlation judging circuit judges that the correlation degree between r pulses in a reception signal and a generated substantially the same template as the r pulses is small, a pulse number adjusting circuit outputs a pulse number signal representing s pulses in place of the r pulses, and a template generating circuit generates the substantially the same template as the s pulses, whereby the correlation judging circuit judges the correlation degree between the r pulses in the reception signal and the generated substantially the same template as the s pulses. Accordingly, even when a confronted transmitter changes the number of pulses contained in a reception signal, synchronization capture of the reception signal can be established.

Receiver and receiving method

A liquid property detection device includes: an electromotive force obtaining unit that obtains an electromotive force which is generated between two electrodes in a liquid container, the two electrodes formed by metals having respectively different ionization tendencies, and the liquid container containing a liquid so that the liquid is in contact with the two electrodes; a storage unit that stores a table showing correspondence between a property of the liquid contained in the liquid container and the electromotive force; a property determination unit that determines the property of the liquid contained in the liquid container on the basis of the electromotive force obtained by the electromotive force obtaining unit and the table stored in the storage unit; and an output unit that outputs information corresponding to the property determined by the property determination unit.

Liquid property detection device, liquid container, image forming device, and liquid property detection method

Presentation supporting devicefor projecting image on screen is provided with the functions of acting as an access point to wireless LAN network and managing a schedule of a presentation. The participants joining a presentation meeting bring stationsstoring image data to a presentation room to connect the stations to a wireless LAN network. When the occupation of a screen is permitted by presentation supporting device, image data is sent from a station

Presentation supporting device and related programs

A printer that enables a determination whether a failure has occurred in a device during initialization or a radio wave condition is bad. Receive electric field strength during a time period from a time at which a turn-off message is outputted to a time at which turn-on message is outputted and receive electric field strength after the turn-on message is outputted are measured. The measurements are compared with each other and information indicating the condition of each of a plurality of channels is printed out according to the results of the comparison. A user can reference the printed information to determine whether a failure has occurred in a device or the radio wave condition is bad.

Printing device, diagnosing method for printing device, and diagnosing program for printing device

A printing apparatus can be easily initialized, and can easily know an error correcting method. Upon first power-up, a storage unit stores in the apparatus the initialization item data indicating the items to be initialized, and prints out the stored initialization item data. Since the contents to be initialized are printed out, the operation can be performed according to the contents without reading impossible instruction manual, thereby improving the initializing operation efficiency. Additionally, the storage unit stores the error correcting operation data indicating the operating method for correcting an error when the error occurs in the apparatus, and prints out the stored error correcting operation data. Since the error correcting operation method is printed out, an occurring error can be easily corrected by referring to the output method.

Printing apparatus, printing apparatus initializing method, printing apparatus error correcting method, printing apparatus initializing program, and printing apparatus error correction program

Growing community of inventors

Yokohama, Japan

Isuke Karaki