JPS6019033U - Camera exposure control device equipped with multiple input A-D conversion circuit - Google Patents
Camera exposure control device equipped with multiple input A-D conversion circuitInfo
- Publication number
- JPS6019033U JPS6019033U JP9292784U JP9292784U JPS6019033U JP S6019033 U JPS6019033 U JP S6019033U JP 9292784 U JP9292784 U JP 9292784U JP 9292784 U JP9292784 U JP 9292784U JP S6019033 U JPS6019033 U JP S6019033U
- Authority
- JP
- Japan
- Prior art keywords
- control device
- conversion circuit
- exposure control
- multiple input
- device equipped
- 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
- Analogue/Digital Conversion (AREA)
- Exposure Control For Cameras (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例に係るＡ−Ｄ変換装置のブロ
ック構成図、第２区は第１図示構成の具体的な回路構成
図、第３図は第２図示アナログ・ゲートの回路例を示す
回路構成図、第４図は第２図示構成の動作を説明する為
のタイム・チャー１・、第５図は本考案の他の実施例に
係るＡ−Ｄ変換装置の回路構成図である。
２・・・アナログ情報入力手段、４・・・マルチ・プレ
クサー、６・・・比較器、８・・・Ａ−Ｄ変換制御手段
、１０・・・レジスタ、１２・・・Ｄ−Ａ変換器、１４
・・・レジスタ、１６・・・制御手段、２４１〜２４３
・・・アナログ・ゲート。FIG. 1 is a block configuration diagram of an A-D converter according to an embodiment of the present invention, the second section is a specific circuit configuration diagram of the configuration shown in the first diagram, and FIG. 3 is the circuit of the analog gate shown in the second diagram. A circuit configuration diagram showing an example, FIG. 4 is a time chart 1 for explaining the operation of the configuration shown in the second diagram, and FIG. 5 is a circuit configuration diagram of an A-D converter according to another embodiment of the present invention. It is. 2... Analog information input means, 4... Multiplexer, 6... Comparator, 8... A-D conversion control means, 10... Register, 12... D-A converter , 14
...Register, 16...Control means, 241-243
...analog gate.
Claims (1)
を選択し、その後被写体輝度に対応したアナログ量を選
択する選択手段と、該選択手段により時系列的に選択さ
れる前記アナログ量をデジタル量に変換する単一の露出
値決定用Ａ−Ｄ変換手段とを有する多入力用Ａ−Ｄ変換
回路を備えたカメラの露出制御装置。a selection means for selecting an analog quantity corresponding to photographing information different from the subject brightness, and then selecting an analog quantity corresponding to the subject luminance; and converting the analog quantity selected in time series by the selection means into a digital quantity. An exposure control device for a camera comprising a multi-input A-D conversion circuit having a single A-D conversion means for determining an exposure value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9292784U JPS6019033U (en) | 1984-06-21 | 1984-06-21 | Camera exposure control device equipped with multiple input A-D conversion circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9292784U JPS6019033U (en) | 1984-06-21 | 1984-06-21 | Camera exposure control device equipped with multiple input A-D conversion circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6019033U true JPS6019033U (en) | 1985-02-08 |
Family
ID=30223389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9292784U Pending JPS6019033U (en) | 1984-06-21 | 1984-06-21 | Camera exposure control device equipped with multiple input A-D conversion circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6019033U (en) |
-
1984
- 1984-06-21 JP JP9292784U patent/JPS6019033U/en active Pending
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