JPS5624670A - Information retrieval device - Google Patents
Information retrieval deviceInfo
- Publication number
- JPS5624670A JPS5624670A JP9855879A JP9855879A JPS5624670A JP S5624670 A JPS5624670 A JP S5624670A JP 9855879 A JP9855879 A JP 9855879A JP 9855879 A JP9855879 A JP 9855879A JP S5624670 A JPS5624670 A JP S5624670A
- Authority
- JP
- Japan
- Prior art keywords
- information
- fed
- case
- retrieval
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
PURPOSE: To dispose the head information of the desired information groups at a predetermined position automatically by one action by disposing the operating switch for commanding the placement of a head portion of the information groups at a predetermined position.
CONSTITUTION: In the information retrieval device for making retrieval to a desired information from the microfilm having a plurality of the information, in the case of being placed at a desired page on the way of the desired information in question, differentiating signal differentiated the brake signal c from the retrieval control circuit 34 in differentiating circuit 37 sets FF2 and resets FF1. The output of FF2 is fed to AND gate G1, and when pressing the head detection key 33, the gate G1 is opened and FF1 is set and the film driving motor 10 is reversed through the motor reversing driving circuit 35. The film is fed in an opposite direction and when the first case retrieval mark is detected by the case mark detector 9, FF1 is reset and the driving signal to the circuit 35 is not fed but the motor 10 is stopped. The brake signal is fed to the brake device via Q' terminal of FF1 and the film is stopped at a head position of the case information.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9855879A JPS5624670A (en) | 1979-08-01 | 1979-08-01 | Information retrieval device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9855879A JPS5624670A (en) | 1979-08-01 | 1979-08-01 | Information retrieval device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5624670A true JPS5624670A (en) | 1981-03-09 |
Family
ID=14223013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9855879A Pending JPS5624670A (en) | 1979-08-01 | 1979-08-01 | Information retrieval device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5624670A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5840685A (en) * | 1981-09-04 | 1983-03-09 | Ricoh Co Ltd | Turn back controlling method of information retrieving |
-
1979
- 1979-08-01 JP JP9855879A patent/JPS5624670A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5840685A (en) * | 1981-09-04 | 1983-03-09 | Ricoh Co Ltd | Turn back controlling method of information retrieving |
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