JPS5491023A - Variable resolution solid scanner - Google Patents

Variable resolution solid scanner

Info

Publication number
JPS5491023A
JPS5491023A JP15794377A JP15794377A JPS5491023A JP S5491023 A JPS5491023 A JP S5491023A JP 15794377 A JP15794377 A JP 15794377A JP 15794377 A JP15794377 A JP 15794377A JP S5491023 A JPS5491023 A JP S5491023A
Authority
JP
Japan
Prior art keywords
resolution
converted
solid scanner
scanner
variable
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
JP15794377A
Other languages
Japanese (ja)
Inventor
Hirokuni Ishiguro
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15794377A priority Critical patent/JPS5491023A/en
Publication of JPS5491023A publication Critical patent/JPS5491023A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To allow a simple solid scanner used for an optical character reader, etc., to generate its output with resolution variable by converting a digital signal from the solid scanner into an analog signal and by performing A/D conversion after sampling at a period which corresponds to resolution.
CONSTITUTION: Information on slip 1 is read out by solid scanner 2 of a self-scanning type solid photoelectric converter in a digital signal, which is converted into an analog signal in a time-axial direction by D/A converter 3. This analog signal converted in the time-axial direction is applied to sampling circuit 5 via smoothing circuit 4 and sampled at a fixed frequency which corresponds to resolution. Then, sampled analog signals are A/D-converted again to obtain a variable-resolution output signal.
COPYRIGHT: (C)1979,JPO&Japio
JP15794377A 1977-12-28 1977-12-28 Variable resolution solid scanner Pending JPS5491023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15794377A JPS5491023A (en) 1977-12-28 1977-12-28 Variable resolution solid scanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15794377A JPS5491023A (en) 1977-12-28 1977-12-28 Variable resolution solid scanner

Publications (1)

Publication Number Publication Date
JPS5491023A true JPS5491023A (en) 1979-07-19

Family

ID=15660851

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15794377A Pending JPS5491023A (en) 1977-12-28 1977-12-28 Variable resolution solid scanner

Country Status (1)

Country Link
JP (1) JPS5491023A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60135961U (en) * 1984-12-28 1985-09-10 三菱電機株式会社 signal reading device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60135961U (en) * 1984-12-28 1985-09-10 三菱電機株式会社 signal reading device

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