Dai Nippon Insatsu Kabushiki Kaisha

Sony Corporation

Yorihiko Sakai

Hideaki Fujii

Takeshi Matsumoto

Norikazu Mineo

Norikatsu Ono

Wataru Kuramochi

Yoshiaki Tsuruoka

Osamu Ota

Kohei Sakura

Yasushi Ota

Kouhei Sakura

A female mold (2, 12, 22, 32, 42, 52, 62) having a desirable pattern is formed on a substrate (1, 11, 21, 31, 41, 51, 61). Next, ceramic material (3, 13, 23, 33, 43, 53, 63) is filled in spaces in the female mold. Thereafter, the female mold is removed by heating the entire substrate, whereby a desirable thick film pattern can be finely and easily formed. The inorganic paste material comprising inorganic liquid vehicle containing water glass as main ingredient and powdery solid dispersed in the inorganic liquid vehicle is used as the ceramic material. The volume change of the inorganic paste material is small during the drying and calcinating processes, thus the inorganic paste material is prevented from being broken.

Method of forming thick film pattern and material for forming thick film

An apparatus for managing picture data receives picture data representing a number of pictures at different times, generates a time code indicating the time of receipt of each picture, and stores the received picture data with a header that includes the time code. In order to retrieve selected pictures, retrieval parameter information is entered to indicate a selected time period, and the picture data that was received during the selected time period is retrieved. The apparatus also forms reduced size picture data for each received picture and stores the reduced size picture data in the header together with the time code for the corresponding picture. Upon retrieving selected ones of the stored pictures, the corresponding reduced size picture data is used to display simultaneously several reduced size pictures representing the pictures that have been retrieved.

Apparatus and method for managing picture data

The present invention is directed to a method of processing a color video signal in which printing color separation data is formed from a color video signal and a printing original plate is made by using the printing color separation data. This color video signal processing method is comprised of the steps of reading out a reference color test chart by a printing scanner and producing scanner four color separation data of the reference color test chart by the printing scanner, taking a picture of the reference color test chart radiated by a standard light source by a video camera, producing camera four color separation data from a color video signal output from the video camera, comparing the scanner four color separation data with the camera four color separation data and allowing a level difference therebetween to be stored in a memory as correcting data which is used to correct the camera four color separation data, and correcting the four color separation data by the correcting data stored in the memory to thereby produce four color separation data when the four color separation data for making the printing original plate are generated from a color video signal of the video camera. Therefore, a printing original plate having satisfactory color reproducibility can be produced by utilizing the video camera.

Color video still image processing system

The present invention relates to a method for recording data on an optical data recording card. The present invention discloses practical data formats for solving the following problems: (1) the control of the operation for reading out unit readout arrays by means of a line sensor; (2) the establishment of synchronism with data pits in case of the readout operation, (3) the discrimination between the adjacent unit readout arrays; (4) countermeasure taken when readout errors occurs; and (5) efficient access to data. In order to solve the above-described problems, data pits are arranged in unit readout arrays; bars are defined for guiding the line sensor; and a format for indicating the center position of each unit readout array is prepared. Furthermore, special bars are also defined in order to correct the inclination of the line sensor. The data pits are arranged at a predetermined period and sync pits are provided to establish the synchronization with the pit period in case of the readout operation. In addition, discriminating pits are provided in order to distinguish between the adjacent readout arrays in case of the readout operation. The discriminating pits may be pits for discriminating the even-numbered unit readout arrays from the odd-numbered unit readout arrays or may be three pits so as to increase a degree of accuracy with which each unit readout array is discriminated. A format in accordance with the present invention is provided with special error check pits in order to take countermeasure when readout errors occur. Furthermore, in order to take countermeasure when readout errors occur due to local contamination on the optical data recording card, the data are distributed and then recorded. In order to perform the efficient access to data, required data representing a predetermined address value and so on are also recorded together with the general data. The present invention also discloses a method for forming pits by modulating the digital signal and an optical system as well as a signal processing system of a reading device used in connection with the optical data recording cards. The optical data recording cards on which are recorded the data by the method of the present invention are expected to be widely used in various fields as recording media for storage of computer programs, images, musical data and various data base.

Method for recording data onto optical data recording cards including

A defect detection system detects defective portions such as scratches, pinholes and dust on a pattern formed surface of a medium such as an optical card, optical disk, holographic memory medium or photomask, on which fine patterns are formed. A light source irradiates a controlled ray to a recording portion as an object of detection of the medium, a position regulating mechanisn contrasts a light receiving position of the recording portion, a reflected ray detector distinctively detects reflected rays from defective portions and normal portions of the medium and a reflected ray controller contacts the reflected rays in a manner that the detector can detect optical data by imaging only the reflected ray from a defective portion without the reflected ray from a normal portion.

System for detecting defective portions in data recording portions of

A format is provided with special error check pits in order to take countermeasures when readout errors occur. Furthermore, in order to take countermeasures when readout errors occur due to local contamination on the optical data recording card, the data are distributed and then recorded. In order to perform the efficient access to data, required data representing a predetermined address value are also recorded together with the general data. A method is also provided for forming pits by modulating the digital signal and an optical system as well as a signal processing system of a reading device used in connection with the optical data recording cards. The optical data recording cards on which are recorded the data by the method of the present invention can be used in various fields as recording media for storage of computer programs, images, musical data and various data bases.

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Tokyo, Japan

Yorihiko Sakai