Abstract: A document storage and retrieval system for storing a document body in the form of image, means for storing text information in the form of a character code string for retrieval, apparatus for executing a retrieval with reference to the text information, and apparatus for displaying a document image relating thereto on a retrieval terminal according to the retrieval result. Such a form of the system is available for retrieving the full contents of a document and also for displaying the document body printed in a format easy to read straight in the form of image. Users are capable of retrieving documents with arbitrary words and also capable of reading even such a document as is complicated to include mathematical expressions and charts through a terminal in the form of image, the same as on paper. A system is provided wherein the text information for retrieval is extracted automatically from the document image through character recognition.

Abstract: A semiconductor memory device comprises a memory cell array including a plurality of memory cells, a word line selection circuit for selecting a word line, a bit line selection circuit for selecting a bit line, an input/output circuit for supplying data to be written to a selected memory cell via the selected bit line and for reading data from the selected memory cell via the selected bit line, a word line driver including a MOS transistor having a drain supplied with a supply voltage and a source connected to the word line selection circuit for supplying a word line voltage to the selected word line via the word line selection circuit, a word line boosting circuit connected to the drain of the MOS transistor for boosting the word line voltage via the MOS transistor, a boosting capacitor connected across the source and the gate of the MOS transistor, and a clamping circuit connected to the gate of said MOS transistor for clamping the voltage level at a predetermined level.

Abstract: An information search terminal apparatus and information search system for performing information search by using a variety of windows assure high manipulatability for the user by making available information of the results of searches performed in the past and the current system state.

Abstract: A method and apparatus for making document information search and a magnetic disk unit to be used for realizing the method and apparatus. In the document information search method, in performing document search with respect to a desired subject key word, two stages of presearch are carried out. In a first stage of presearch (step 402), a character component table (500) in which existence of character codes for every document is stated with respect to all the character codes contained in the group of document text data of stored documents is generated, and the character component table is searched for all the character codes constituting a desiredly designated search subject key word to thereby extract all the documents each containing all the character codes constituting the search subject key word.

Abstract: A compact character string retrieving system capable of producing correctly the result of matching without omission even upon occurrence of multiple matching in which a plurality of search terms are matched for one character string by a finite automation. A destination state for transition brought about by a trailing character of the search term is newly created instead of an initial state. A transition table storage stores the destination state. On the basis of the source state number and a specified pattern character code, the destination state number is read out from the state transition table storage. When the state number read out represents the destination state of the transition brought about by the trailing character of the specified pattern character string, an identifier thereof is outputted. The identifiers of the search terms matched are each represented by one bit information, and a group of corresponding flags is stored in one slot. Multiple matching can be performed without omission.

Abstract: A range-conditional character string retrieving method and system capable of performing retrieval of a numerical value from a character string at an increased speed by shortening the time taken for generation of finite automaton, range condition retrieval for a character string containing admixedly numeric characters and non-numeric characters such as alphabetic letters and highly intelligent retrieval of a numerical value with designation of preceding and succeeding characters. Given range condition is partitioned in accordance with difference in the digit number between upper and lower limit values, whereon retrieval is performed in each of partitioned ranges in parallel. When a finite automaton transits from a predetermined state to at least two state in dependence on the result of collation of a character string subjected to retrieval, conditions for the state transitions are designated in terms of corresponding codes.

Abstract: A color thermal printer in which the positioning of the paper in the vicinity of the transfer section is precisely controlled while the paper is being transported and printed. Thus good registration of the various colors used is ensured and the printable area of the paper is enabled to be extended. At the same time, the strain on the thermal print head is minimized by using only the amount of contact pressure required to perform the printing.

Abstract: A color printer according to the present invention includes a clutch means, an urging member and a positional alignment mechanism. The clutch means is used for engaging and disengaging a driving force used to move a paper holder means. The urging member (e.g., a spring) is used to urge the paper holder means in a direction opposite to the printing direction. The positional alignment mechanism is used for mechanically determining the position at which printing is to start on the paper when the paper holder means is disengaged from the driving force by the clutch means and is urged by the urging member in the direction opposite to the printing direction.

Abstract: A character stream search system using an FSA for determining at a time whether or not a plurality of character streams as search objects exist in a search character stream which undergoes a search operation and which comprises a plurality of characters expressed with codes. In the system, a collation is conducted between the search character stream and a search object character. In a case where there exists a matched search object character as a result of the collation, a state transition is carried out of a predetermined state indicated by the FSA. In a case where there does not exist a matched search object character, a failure processing to effect a state transition to a transistion destination which is determined in association with the configuration of the FSA. The following processing is completed at a count which is a predetermined upper-limit value for each character undergone the search operation.

Abstract: An apparatus for document browsing, specifically for document retrieval systems. The browsing apparatus enables users to see multiple document pages on the same screen at the same time in a first mode and to see a bundle of pages on a screen in a second mode. The images shown on the screen are produced internally according to the user's commands. The pages may be flipped in either direction and selected pages may be marked for later printing instructions.

Abstract: A color thermal printer which offers good color registration when plural colors are to be printed on a print receiver. The position of the printing area can be adjusted easily and precisely by controlling the rotation of a drum which carries the print receiver. Also, the diameter of the platen roller is not restricted by the length of the print receiver being used.

Abstract: A document storage and retrieval system stores a document body in the form of an image, storing text information in the form of a character code string for retrieval, and executing a retrieval with reference to the text information, followed by displaying a document image relating thereto on a retrieval terminal according to the retrieval result. Such a form of the system is available for retrieving the full contents of a document and also for displaying the document body printed in a format easy to read straight in the form of an image.

Abstract: A sheet securing mechanism which has upper and lower members. Pins are formed on the upper members. A magnetic actuator when excited in one condition provides a magnetic force that causes the upper member to move to a closed sheet securing state where the pins are pressed into a sheet.

Abstract: An image display apparatus that can ease the man-machine interaction when a user searches for a document in an electronic filing system, for example, through the image display apparatus. In a conventional electronic document filing system, it has been difficult to search for a document by inspecting or looking at the original document images shown on an image display screen. The difficulty comes from the lack in a capability of controlling the instantaneous display speed, an appropriate feedback to the user to synchronize the image paging, and a capability of showing the direction of paging. The image display apparatus disclosed here has a tactile feedback mechanism that tells the user the time a new image page is shown and that also tells him/her other status of the apparatus, like how busy it is, in terms of a tactile signal to the user's fingers. The mechanism is installed in a mouse-like pointing device that tells the apparatus the speed of paging.