Microfilm retrieval transmission system

Abstract

Abstract PURPOSE: To expand the range of the utility of microfilm retrieval by exercising control so that picture information on a retrieved microfilm can be transmitted to any terminal device. CONSTITUTION: The subscriber's number of a terminal device which should receive a picture signal, e.g. terminal device 7a and retrieval information on a desired microfilm are inputted from keyboard 5. Next, terminal device 4 sends the retrieval information, required by terminal 7a, to picture signal transmitter 2 through the exchange. Transmitter 2 supplies the retrieval information to micro image file MIF1. Then, MIF1 performs retrieval on the microfilm on the basis of the retrieval information and, after the retrieval, sends the result to transmitter 2. Transmitter 2 operates exchange 3 to connect terminal device 7a to the circuit and sends the obtained picture signal to terminal device 7a. Terminal device 7a receives this picture signal and generates and outputs its hard copy. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Ichiro Ogawa
• 👤 Giichi Yamazaki
• 👤 Makoto Murakoshi
• 👤 Yoshiaki Suwama

Bibliographic Details