Hitachi, Ltd.

Tooru Yokozawa

Hiroshi Shimizu

Tadashi Kuwabara

Nobukazu Kondo

Kazuchika Ogiwara

Tsutomu Hara

Muneaki Yamaguchi

Tomochika Ozaki

Masaya Umemura

Michihiro Mese

Hidefumi Goto

Kazushige Hiroi

Yoshihiro Yamada

Takeo Tomokane

Tomohiro Esaki

Yoshihiko Kunimori

Wataru Kitayama

Kouichi Hibi

Hiroi Kazushige

Shinichiro Okamura

A communication system including a network and at least two terminal units connected thereto. Each terminal unit includes a session controlling unit for controlling a session for enabling transmission/receiving of voice, image, handwritten data to/from the remote terminal unit individually, and a display unit for displaying the image and the handwritten data. The image data and the handwritten data are overlapped and displayed on a display of the display unit.

Communication system and terminal units connected thereto

A terminal device stores in a nonvolatile memory a video encoding method, a size expressed by pixels, a frame rate, a bit rate, and a key frame insertion interval suitable for reception. A receiving side terminal device notifies information to a sending side terminal. According to the information, the sending side terminal device encodes video data obtained by shooting an object and transmits encoded video data. Also, the sending side terminal device cuts, from the video data, video data of a size not exceeding a least size among a size of the video data obtained by the sending side terminal device, a size expressed by pixels suitable for transmission in the sending side terminal device, and a size expressed by pixels suitable for reception in the reception side terminal device. The sending side terminal device encodes and transmits the video data.

Video telephone system and terminal device therefor

In the handheld terminal device, when a message reception unit receives from a host computer a new arrival message indicating a new arrival of a file (or electronic mail), a control unit analyzes the new arrival message to obtain identifier information for identifying the file (or electronic mail) and a telephone number of the host computer. After a line connection to the host computer is established by a handheld phone transceiver unit, a fetch request command for fetching the file (or electronic mail) is transmitted to automatically fetch the file (or electronic mail) from the host computer and make the user know the contents of the file (or electronic mail) by using a display unit. A FAX transmitting user designates a destination handheld terminal device and transmits FAX image data to a communication server (CS). CS stores the received FAX image data and transmits a FAX arrival message to a pager connected to the destination handheld terminal device. A user of the handheld terminal device informed of a FAX arrival by the pager confirms the FAX brief image data contained in the message, and if necessary, calls CS by a handheld phone connected to the handheld terminal device to make CS transmit the FAX image data and refer to the detailed contents thereof.

Data transfer system and handheld terminal device used therefor

A transmitting management apparatus transmits information having an identification number corresponding to a portable information terminal to which information is to be delivered and/or having a sorting code identifying the information. The portable information terminal receiving the transmitted information selectively acquires and stores proper information by referring to the identification number and/or the sorting code of the received information, and displays the proper information on a display means.

Information delivery system and portable information terminal

Growing community of inventors

Yokohama, Japan

Tooru Yokozawa