A data transmission system is disclosed which optimizes transfer and updates of information between systems by providing difference information between the systems. The system transmits data packages having instructions for manipulating user data. The data packages include a header identifying the respective packages, as well as transaction objects for effecting a change to user data on a device having object instructions.

Data transfer and synchronization system

An electro-optical device having a plurality of pixels including a plurality of EL elements, wherein the electro-optical device provides a gray scale display by controlling a period of time at which the plurality of the EL elements emit light in one frame period; the plurality of the EL elements have a first electrode and a second electrode; the first electrode is held at a constant potential; and a potential of the second electrode changes in such a manner that a polarity of an EL driving voltage, which is a difference between the potentials applied to the first and second electrodes, is inverted for each one frame period.

Electro-optical device

A system and method of advanced identification information to be created and distributed to users of wireless communication devices, such as mobile phones. Subscribers can define their own personas as collections of information which define the users. Subscribers can then publish their persona(s) to their friends' and associates' mobile phones, and update the others' address books with the subscriber's contact information. Users can specify different personas to be presented to different users.

Advanced contact identification system

An object is to provide a method for manufacturing a semiconductor device, in which the number of photolithography steps can be reduced, the manufacturing process can be simplified, and manufacturing can be performed with high yield at low cost A method for manufacturing a semiconductor device includes the following steps: forming a semiconductor film; irradiating a laser beam by passing the laser beam through a photomask including a shield for shielding the laser beam; subliming a region which has been irradiated with the laser beam through a region in which the shield is not formed in the photomask in the semiconductor film; forming an island-shaped semiconductor film in such a way that a region which is not irradiated with the laser beam is not sublimed because it is a region in which the shield is formed in the photomask; forming a first electrode which is one of a source electrode and a drain electrode and a second electrode which is the other one of the source electrode and the drain electrode; forming a gate insulating film; and forming a gate electrode over the gate insulating film

Method for Manufacturing Semiconductor Device

Exemplary embodiments are directed to wireless power management. A method may include detecting one or more wireless chargers for charging an energy storage device of one or more monitored energy storage devices if the energy storage device drops below a threshold value. Moreover, the method may include selecting a charging scheme for an electronic device associated with the energy storage device.

Power management for electronic devices

Disclosed is a photoelectric conversion device which comprises: a photoconductive layer (34, 44, 57, 67) made of amorphous semiconductor material which shows charge multiplication and which converts photo signals (37, 47, 50, 60) into electric signals; and a substrate (31, 41, 51, 61) having electric circuits or the like (32, 42, 56, 66) (for example switching elements) for reading the electric signals The amorphous semiconduc­tor material used according to the invention shows the charge multiplication action under predetermined intensity of electric field so that a high sensitive photoelectric conversion device having a gain which is not smaller than 1 is realized

Photoelectric conversion device

PROBLEM TO BE SOLVED: To provide a method for effectively performing advertisement requiring immediacy at low costs, and for easily estimating and verifying the effects of the advertisement by selectively distributing an advertisement which is likely to interest the user of a portable telephone terminal positioned in a specific area. SOLUTION: A server 19 for distribution allows a server 16 for detecting a position to collect the position information of a portable telephone terminal 14 equipped with a GPS receiving function, and specifies a portable telephone terminal 14 positioned in a specific area based on the position information. Moreover, the server for distribution obtains information related to the user of the specified portable telephone terminal by retrieving a data base 20, and decides whether or not an advertisement message is to be distributed, and selectively distributes the advertisement message.

Method for distributing advertisement to portable telephone terminal

A photoconductive device having a photoconductive layer which includes an amorphous semiconductor layer capable of charge multiplication in at least a part thereof is disclosed. The method of operating such a photoconductive device is also disclosed. By using the avalanche effect of the amorphous semiconductor layer, it is possible to realize a highly sensitive photoconductive device while maintaining low lag property. In one aspect of the present invention, the amorphous semiconductor layer is amorphous Se. In another aspect of the present invention, the amorphous semiconductor layer is composed mainly of tetrahedral elements including at least an element of hydrogen or halogens. When using the amorphous semiconductor layer composed mainly of tetrahedral elements, the charge multiplication effect is produced mainly in the interior of the amorphous semiconductor, and thus it is possible to obtain a thermally stable photoconductive device having a high sensitivity while keeping a good photoresponse.

Photoconductive imaging apparatus

PROBLEM TO BE SOLVED: To provide a mobile communication terminal, a communication network and a user authentication method that can easily and surely authenticate a user with security. SOLUTION: A user authentication means (authentication server) 60 has authenticated video data relating to a video image of each legal user of each of one mobile communication terminal or over in advance as authentication data, the server 60 requests output of video data of the user to a mobile communication terminal 10 via an exchange 30 upon the receipt of a line connection request from any of one mobile communication terminal or over, and the user authentication means authenticates the user on the basis of the video data of the user supplied from the mobile communication terminal. Furthermore, the user authentication means 60 authenticates the user making a line connection request from the mobile communication terminal as a legal user whose authentication data are stored in the user authentication means when a prescribed video pattern of the video data of the user supplied from the mobile communication terminal is nearly coincident or just coincident with the prescribed video pattern of the authentication data stored in the user authentication means.

Mobile communication terminal, communication network and user authentication method

A photoelectric conversion device using an amorphous material composed mainly of tetrahedral elements including at least an element of hydrogen and halogens as semiconductor material is disclosed. When a strong electric field is applied to a layer formed by using this amorphous semiconductor, a charge multiplication effect is produced mainly in the interior of the amorphous semiconductor and thus it is possible to obtain a thermally stable photoelectric conversion device having a high sensitivity while keeping a good photoresponse.

Junichi Yamazaki

Papers

Photoelectric conversion device

Method for distributing advertisement to portable telephone terminal

Photoconductive imaging apparatus

Mobile communication terminal, communication network and user authentication method

Electric conversion device