Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Kouichi Takamine

Mitsurou Moriya

Yasuaki Edahiro

Katsuya Watanabe

Shin-Ichi Yamada

Hiroyuki Yamaguchi

Atsushi Hirose

Hiromichi Ishibashi

Seiji Nishiwaki

Shin-ichi Yamada

Takashi Ishida

Atsushi Nakamura

Yasuo Kitaoka

Kazuyuki Murata

Kenji Fujiune

Hiroshi Terada

Masayoshi Abe

Akihiro Hatsusegawa

Michiaki Nobuoka

Akimasa Sato

The terminal deviceof an information sharing systemexchanges information mutually with other terminal devicestothat are connected via a network. A receiving unitreceives adoptability information showing update data for updating common data that are shared among a group and adoptability information showing the adoptability of update data. An inputting unitreceives an input of the update data and adoptability information from a user. A sending unitsends the inputted update data and adoptability information to another terminal device. A synthesizing unitgenerates the updated common data by synthesizing the update data with the common data. A judging unitjudges adoptability of the update data based on the adoptability information and has the synthesizing unitsynthesize only the update data that is judged as adoptable.

Communication apparatus, information sharing system and information sharing method

The present invention relates to a technique for controlling the output of a management object data. In the past an output time of the original data can not be limited in the past. In this invention, output time of the management object data can be limited by using PC. The PCis provided with time counterfor measuring the accumulation time for which a management object data is displayed by display, comparatorfor comparing the upper limit time for which the output of the management object data is permitted and the accumulation time measured by time counter, and controllerfor controlling the output of the management object data on the basis of the comparison results by comparator

Image output time management method and the record media

It is not possible to display image data exchanged between portable terminals with different output capabilities. The data processing control apparatus processes processing object data based on the output capability of an output device capable of outputting the processing object data such as image data, and outputs to the output device the processed data that is the processed processing object data. Therefore, the processing object data was converted to the data adapted for the output capability of the output device so that the output device can output any processing object data.

Data processing control apparatus, data processing control method and system thereof

A video buffer that updates and holds an inputted video signal by a unit of a frame image includes: an image data holding unit having a first image data holding unit that holds the latest frame image, a second image data holding unit that holds a second frame image that goes back n pieces of frames in time from the first frame image and a third image data holding unit that holds the third frame image that goes back m pieces of frames in time from the first frame image; a moving picture display unit that displays the latest frame image held in the first image data holding unit; a print data selection unit that selects a frame image stored in any of the first to third image data holding units as a print object; a print confirmation display unit that displays the selected frame image; a print data generation unit that converts the image data of the displayed image into print data and so forth.

Image output device, image forming device and method for generating video hard copy

An image forming device includes a printer engine, a display unit, and a sound reproducing unit. The image forming device receives a list of contents from a content distributing device, and has the display unit display the content list. From the content list displayed by the display unit, a user of the image forming device selects a print content, a display content, and a sound content that he desires, associates the selected contents with one another to produce a group of the selected contents, and requests the content distributing device to distribute the group of the selected contents. The content distributing device produces the group of contents associated with one another, and distributes the group of contents to the image forming device. The image forming device expands the print content in the distributed content group into print data, and has the printer engine print the print data. In synchronization with printing of the print data, the display unit displays the display content associated with the print content, and the sound reproducing unit reproduces the sound content.

Image forming device capable of reproducing sound, and content reproducing method

Communication device of the portable terminal receives a function changing program. Function changing device is realized by executing the function changing program A cooperation device of the controlled apparatus controls the controlled apparatus by operating in cooperation with the function changing program on the portable terminal. With such a construction, the portable terminal can be used as a pointing device of the controlled apparatus.

Portable terminal, controlled apparatus controlled by portable terminal, and cooperation system

An image formation and control method and apparatus enabling a user to print data to be printed reliably up to the limited reproduction number permitted to the user even if troubles at the time of printing occur when the number of reproductions of the data to be printed is limited, is presented. With reference to the printing management information added to the data to be printed, when the number of reproductions of the data to be printed is limited, the mode is changed from the performance priority mode for normally reproducing data to be printed into the safety priority mode capable of carrying out the required reproduction more reliably than in the performance priority mode, the number of printing of the data to be printed is managed as a printing history, and the printing of the data to be printed is controlled based on the number of reproductions of the data to be printed and the managed printing history.

Image formation control method, image forming apparatus using the same and storage medium to which the same is applied

An optical disk includes tracks and grooves, the grooves being formed with a pitch equal to or greater than about &lgr;/NA. A first array of pits is provided at a position which is shifted by a predetermined amount with respect to each track in one of two directions substantially perpendicular to the tracks, the first array of pits being formed with a predetermined pitch, where the predetermined pitch is a function of a pitch of the grooves taking a value within a range from about 0 to about &lgr;/NA. A second array of pits is provided at a position which is shifted by a predetermined amount with respect to the track in the other one of the two directions substantially perpendicular to the tracks, the second array of pits being formed with a predetermined pitch, where the predetermined pitch is a function of the pitch of the grooves taking a value within the range from about 0 to about &lgr;/NA. &lgr; is a wavelength of a light beam which is radiated on the optical disk, and NA to a numerical aperture of a lens.

Optical disk and optical disk apparatus with tracks and grooves

An optical disc apparatus corrects the tilting of the optical disc with a high accuracy using first and second tracking error signals. A first tracking error signal, which is an output of subtractor ( ), obtained by the push-pull method is corrected by detecting a second tracking error signal. The second tracking error signal is obtained by using the difference of amplitude of first and second signals, which are outputs of adder ( ). The first signal is obtained when the light beam passes over a first pit sequence formed in a position offset in one direction orthogonal to the track of disc ( ). The second signal is obtained when the light beam passes over a second pit sequence formed in a position offset in the other direction orthogonal to the track.

Optical disc tilt control apparatus

An optical disk apparatus comprising a device for moving a focal point of a light beam for reproducing information recorded on an information face of a disk, in the direction perpendicular to the information face; a device for detecting a reflected light from the disk; and a device for discriminating whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate. In this apparatus, a maximum value AS L of an output signal from the reflected light detecting device and a maximum value ENV of an amplitude of an information reproducing signal are detected while driving the focal point moving device so that the focal point passes through the information face, and the discriminating device discriminates whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate, on the basis of the ratio of ENV to AS L . Therefore, it is possible to discriminate between a DVD having a thin base substrate and a CD having a thick base substrate.

Optical disk apparatus

An optical disk apparatus comprising a device for moving a focal point of a light beam for reproducing information recorded on an information face of a disk, in the direction perpendicular to the information face; a device for detecting a reflected light from the disk; and a device for discriminating whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate. In this apparatus, a maximum value AS,L,of an output signal from the reflected light detecting device and a maximum value ENV,of an amplitude of an information reproducing signal are detected while driving the focal point moving device so that the focal point passes through the information face, and the discriminating device discriminates whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate, on the basis of the ratio of ENV,to AS,L,. Therefore, it is possible to discriminate between a DVD having a thin base substrate and a CD having a thick base substrate.

While discerning whether the laser beam spot is positioned on a land track or a groove track according to the L/G switch signal LGS from the land groove detection unit,, the focus position rough detection unit,and the focus position precise detection unit,detect two new focus positions (for the land and the groove) so that the bit error rate BER that is measured in the error rate measurement unit,and the envelope of and the jitter in the reproduction signal RF would improve, and output two control signals (FBAL and FOFF) for changing the control target position into the new two focus position to the focus error detection unit

Focus position adjustment device and optical disc drive apparatus

A disk rotation control apparatus includes a spindle motor for rotating a disk, a rotational speed detecting device for detecting the rotational speed of the spindle motor, a signal generating device for generating an acceleration signal that accelerates the rotation of the spindle motor and a deceleration signal that decelerates the rotation of the spindle motor. A storage device for rotating the spindle motor with an acceleration signal generated by the signal generating device, measures a rise time required to reach a prescribed rotational speed &ohgr;1 while detecting the rotational speed of the spindle motor by the rotational speed detecting device, and stores the measured rise time. A control device for decides a time to generate the deceleration signal in the signal generating device on the basis of the rise time stored in the storage device, and stops the rotation of the spindle motor by applying the deceleration signal to the spindle motor. Therefore, even when the diameter or the mass of the disk varies or the characteristics of the spindle motor or the driving circuit vary, undesired reverse rotation of the disk due to over-deceleration or undesired increase in the time required to stop the disk is avoided. As a result, the rotation of the disk can be stopped with high reliability.

Disk rotation control apparatus with deceleration means

An optical disk apparatus comprising means for moving a focal point of a light beam for reproducing information recorded on an information face of a disk, in the direction perpendicular to the information face; means for detecting a reflected light from the disk; and means for discriminating whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate. In this apparatus, a maximum value AS1L.sub.max of an output signal from the reflected light detecting means and a maximum value ENV.sub.max of an amplitude of an information reproducing signal are detected while driving the focal point moving means so that the focal point passes through the information face, and the discriminating means discriminates whether the disk set in the apparatus is a disk having a thick base substrate or a disk having a thin base substrate, on the basis of the ratio of ENV.sub.max to AS1L.sub.max. Therefore, it is possible to discriminate between a DVD having a thin base substrate and a CD having a thick base substrate.

The SHG laser stabilizing control device of this invention has: an SHG laser having a semiconductor laser having a wavelength which changes in a step-wise manner in response to a change in a wavelength-changeable current and a wavelength conversion element which converts the wavelength of output light of the semiconductor laser into a shorter wavelength; an optical detection section for detecting a step-wise change in the wavelength of output light of the SHG laser; a current changing section which changes the wavelength-changeable current supplied to the semiconductor laser in order to change the wavelength of the semiconductor laser; and a wavelength-changeable current control section which obtains a gap current value of the wavelength-changeable current at which the step-wise change in the wavelength is detected by the optical detection section and adds or subtracts a predetermined current value to or from the gap current value to set a wavelength-changeable current value.

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Kawanishi, Japan

Kouichi Takamine