Fujitsu Corporation

Fujitsu Microelectronics Limited

Fuji Xerox Co., Ltd.

Fujitsu Semiconductor Limited

Tetsu Takahashi

Atsushi Tano

Kunihiko Sato

Tomoaki Tanaka

Hirofumi Nakayasu

Tatsushi Otsuka

Tsuneo Mizuno

Tamotsu Nishiura

Yukitoshi Takano

Shigenori Sasaki

Takakazu Kobayashi

Toshihiro Yukawa

Hiroshi Kaneyama

Seiichi Kurihara

To enable a start in a short period of time in an apparatus including a plurality of chips. In chip carrying out information processing in accordance with a firmware which is at least a part of the firmware common to the other chip, each of the chips receives the firmware, refers to setting information, and transfers the firmware to the other chip based on the setting information.

Method for carrying out an information processing in accordance with firmware in a plurality of chips

A coding/decoding part performs codes and decodes a given signal in one of a plurality of coding/decoding modes of different bit rates; and a control part sets a predetermined bit rate to be applied by the coding/decoding part in case a given signal is output after being coded and decoded by said coding/decoding part without storage thereof in a predetermined recording medium.

Image recording apparatus and semiconductor device

A video encoder includes a frame synchronizer to temporarily store video data supplied from an exterior in a plurality of memory banks repeatedly selected in a predetermined sequence and to read the video data successively from the plurality of memory banks repeatedly selected in said predetermined sequence, an encode unit to encode the video data read by the frame synchronizer, and a control unit to perform a bank switch process that swaps one memory bank among the plurality of memory banks for another memory bank separate from the plurality of memory banks.

Video encoder transmitting extracted image to exterior during encoding process

The invention provides a task scheduling method which can prevent overflowing of a buffer on a host system or a data encoding/decoding apparatus even when the transfer rate falls in case the compressed data and the non-compressed data are simultaneously transferred between the host system and the data encoding/decoding apparatus. In a task scheduling method, the compressed audio/video data is transferred from the buffer of the host system to an external device with a first transfer priority. The non-compressed audio/video data is transferred from the buffer to the external device with a second transfer priority lower than the first transfer priority.

Task scheduling method in case of simultaneous transfer of compressed data and non-compressed data

A video signal processing circuit includes a frame memory to receive and store therein at a first rate each frame of a digital video signal in which additional information is assigned separately to each frame, a frame synchronization unit to read each frame of the digital video signal from the frame memory at a second rate, and a processing unit to assign the additional information to the digital video signal read by the frame synchronization unit, without repeating the additional information when the frame synchronization unit reads a same frame of the digital video signal repeatedly, and without skipping the additional information when the frame synchronization unit reads by skipping a frame of the digital video signal.

Circuit for processing video signal including information such as caption

A semiconductor device capable of deleting data already recorded on a recording medium when information indicative of prohibition of copying is detected from picture signal. Input portion receives an input picture signal, and copy protection information detecting portion detects copy protection information included in the picture signal input from the input portion. Compressing portion compresses the picture signal, and compressed data output portion outputs compressed data obtained by the compressing portion. Specification information output portion generates and outputs specification information specifying a position of the compressed data where the information indicative of prohibition of copying was detected first by the copy protection information detecting portion. A device for recording the compressed data can specify the head of unnecessary compressed information by looking up the specification information, whereby the unnecessary information can be deleted from the recording medium.

Semiconductor device for compressing video signals with copy protection information

Disclosed is a printing agent service method for performing agent printing on a printing agent printer in accordance with a print request of a client terminal, and selects a printing agent printer that is nearest to a client. This method has the steps of receiving a print request and location information from a client terminal (); retrieving the printing agent printer site (-) closest to the location of the client terminal () based on the location information; sending the nearest printing agent printer site (-) to the client terminal () for display; and receiving the printing agent printer site (-) specified from the above-mentioned client terminal (), and sending the print data of the print request to a printer () at the specified printing agent printer site. Therefore, a client can easily select a printing agent printer that is close to his current location.

Printing agent service method and system

The coding processing is suspended when at least one of the first to third buffers store(s) therein data of amount exceeding its/their respective maximum amount(s). The coding processing is restarted when at least one of the first to third buffers store(s) therein data of amount below its/their respective reference amount(s) which is/are set to smaller values than the maximum amounts, respectively. This enables prevention of overflow of the first and second buffers. This can also prevent unread data from being overwritten in the first and second buffers, so that generation of not normal multiplexed data can be prevented. Accordingly, the output of erroneous multiplexed data can be prevented.

Data coding method and data coding device

The present invention provides a printer system that performs a printing operation on recording sheets of various types. In accordance with the present invention, the image of a recording sheet on which recording sheet identification information for identifying the type of the recording sheet and data identification information for identifying the type of print data is printed in advance is picked up by an image pick-up device. From the picked up image, the recording sheet identification information and the data identification information are extracted and then compared so as to detect inconsistency between the type of the recording sheet and the type of the data. By this printing system, a data printing operation can be performed on desired recording sheets.

Printer system

Disclosed a tandem type color image forming apparatus and a color image forming method to reduce the cost of production without lowering the transfer efficiency. An electric potential setting member ( ) is disposed in the tandem color image forming apparatus. The electric potential setting member ( ) sets the electric potential difference between the front and back faces of a dielectric belt ( ) in tandem image forming units ( to ) to approximately 0V before a transfer material ( ) is adsorbed. This enables the electric potential difference between the front and back faces of the dielectric belt ( ) in the respective color transfer positions to be set to approximately 0V. Therefore, there is a wide range of selecting the dielectric belt types, and the lowering of the transfer efficiency can be prevented, which is caused by the lowering of the resistance value of the dielectric belt surface after running.

Color image forming apparatus and color image forming method thereof

It is an exemplified object of the present invention to provide a developer, a development device and its elements, and an image-forming device that can more stably form a high-quality image by a relatively inexpensive and easy means. A noncontact-type development method according to the present invention utilizes a nonmagnetic and single component toner having a volume average particle diameter D (&mgr;m) and an average specific charge q/m (&mgr;C/g), a development roller having a ten-point average surface roughness Rz (&mgr;m), and a blade keeping in contact with the development roller at a blade line pressure Pb (gf/cm). In order to stably form a uniform toner layer dt (&mgr;m) on the development roller, the following relationship is to be met: dt&equals;1.8&times;&lcub;q/m&times;Rz/(Pb&minus;1)&rcub; &times;D&plusmn;0.25 D, and 1.5 D&lE;dt&lE;3.5 D.

Developer, development method, development device and its elements, and image-forming device

A charge amount controlling roller serving as a charge amount controlling member is placed to face to a developing roller and is disposed on an upstream side, in a rotation direction of the developing roller, of a developing position at which a photosensitive drum and the developing roller face to each other. The charge amount controlling roller is biased with a voltage having the same polarity as that of non-latent-image portions on the photosensitive drum with respect to the developing roller, thereby reducing extraordinarily charged developing agents, or high charged, low charged, reverse charged toners otherwise causing image defects such as fogs.

Growing community of inventors

Kawasaki, Japan

Tetsu Takahashi