JPS5579483A - Reconstruction system of hologram signal - Google Patents

Reconstruction system of hologram signal

Info

Publication number
JPS5579483A
JPS5579483A JP15456278A JP15456278A JPS5579483A JP S5579483 A JPS5579483 A JP S5579483A JP 15456278 A JP15456278 A JP 15456278A JP 15456278 A JP15456278 A JP 15456278A JP S5579483 A JPS5579483 A JP S5579483A
Authority
JP
Japan
Prior art keywords
saw tooth
binary
pulse
signal
comparators
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
Application number
JP15456278A
Other languages
Japanese (ja)
Inventor
Tadashi Hikita
Yoichi Morimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP15456278A priority Critical patent/JPS5579483A/en
Publication of JPS5579483A publication Critical patent/JPS5579483A/en
Pending legal-status Critical Current

Links

Landscapes

  • Holo Graphy (AREA)

Abstract

PURPOSE: To enable correct signals to be read without causing division and missing of binary codes by lighting and driving light sources with the saw tooth wave currents having suitable periods and peak values.
CONSTITUTION: Light sources are lighted and driven by saw tooth wave currents and the output signals of photo sensors 21W25 are inputted to current-voltage converting circuits 511W515. Here, the periods of the saw tooth wave current are made sufficiently high and the peak values sufficiently high as well. If it is assumed that the sensors 21, 22 be photo detecting bits, then the saw tooth waves appear only at V1, V2 of voltage signals V1WV5 and the square wave pulse signifying 1 appears only at the binary signal D1' through comparators 521W525, binary converting circuit 53, integrating circuits 541..., comparators 551... Now, when the sensor 23 receives noise light, the pulse P3 becomes the one having a shorter time width than P1, P2 and no change is seen in the pulse number in the binary signal D1 of the circuit 53, hence the signal D1' is obtained and 1 may be read out correctly.
COPYRIGHT: (C)1980,JPO&Japio
JP15456278A 1978-12-12 1978-12-12 Reconstruction system of hologram signal Pending JPS5579483A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15456278A JPS5579483A (en) 1978-12-12 1978-12-12 Reconstruction system of hologram signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15456278A JPS5579483A (en) 1978-12-12 1978-12-12 Reconstruction system of hologram signal

Publications (1)

Publication Number Publication Date
JPS5579483A true JPS5579483A (en) 1980-06-14

Family

ID=15586950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15456278A Pending JPS5579483A (en) 1978-12-12 1978-12-12 Reconstruction system of hologram signal

Country Status (1)

Country Link
JP (1) JPS5579483A (en)

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