JPS60639U - Automotive data reading device - Google Patents
Automotive data reading deviceInfo
- Publication number
- JPS60639U JPS60639U JP8992583U JP8992583U JPS60639U JP S60639 U JPS60639 U JP S60639U JP 8992583 U JP8992583 U JP 8992583U JP 8992583 U JP8992583 U JP 8992583U JP S60639 U JPS60639 U JP S60639U
- Authority
- JP
- Japan
- Prior art keywords
- data
- vehicle
- read
- external memory
- reading device
- 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
- Techniques For Improving Reliability Of Storages (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図は従来のデータ読込み装置のブロック線図、第２
図は本考案によるデータ読込み装置の全体構成図、第３
図は本考案によるデータ読込み装置の一実施例のブロッ
ク線図、第４図は第３図に、 示したデータ読込み装置
によるデータ読込み動作のフローチャートを示す。
１・・・・・・外部メモリ、２・・・・・・読込み制御
回路、３・・・・・・内部メモリ、４・・・・・・比較
器、５・・・・・・ＯＲ回路、６・・・・・・切替器、
７・・・・・・車両停止検出装置、７ａ・・・□ ・・
・停止検出回路、７ｂ・・・・・・ＡＮＤ回路。Figure 1 is a block diagram of a conventional data reading device, Figure 2 is a block diagram of a conventional data reading device.
The figure is an overall configuration diagram of the data reading device according to the present invention.
The figure is a block diagram of one embodiment of the data reading device according to the present invention, and FIG. 4 is a flowchart of the data reading operation by the data reading device shown in FIG. 1...External memory, 2...Reading control circuit, 3...Internal memory, 4...Comparator, 5...OR circuit , 6......switcher,
7...Vehicle stop detection device, 7a...□...
- Stop detection circuit, 7b...AND circuit.
Claims (1)
む読込み制御手段と、車両の停止を検出する停止検出手
段と、外部メモリから読込んだデータと前の読込みタイ
ミングで外部メモリから読込まれ内部メモリに格納され
たデータとを比較し、一致していないときは前記読み込
み制御手段に再読み込みを指令する比較手段と、外部メ
モリから読込んだデータを車両の停止中は内部メモリに
転送し、走行中は内部メモリと前記比較器とに交互に切
替えて転送する切替手段とを有することを特□徴とする
車載用データ読込み装置。A read control means reads data from the external memory at a predetermined read timing, a stop detection means detects a stop of the vehicle, and the data read from the external memory and the data read from the external memory at the previous read timing are stored in the internal memory. and a comparison means for instructing the reading control means to reread the data if they do not match, and a comparison means for instructing the reading control means to reread the data when the vehicle is stopped, and transferring the data read from the external memory to the internal memory when the vehicle is stopped and □ An on-vehicle data reading device characterized by comprising a switching means that alternately switches and transfers data between an internal memory and the comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8992583U JPS60639U (en) | 1983-06-14 | 1983-06-14 | Automotive data reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8992583U JPS60639U (en) | 1983-06-14 | 1983-06-14 | Automotive data reading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60639U true JPS60639U (en) | 1985-01-07 |
Family
ID=30219822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8992583U Pending JPS60639U (en) | 1983-06-14 | 1983-06-14 | Automotive data reading device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0478499U (en) * | 1990-11-20 | 1992-07-08 |
-
1983
- 1983-06-14 JP JP8992583U patent/JPS60639U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0478499U (en) * | 1990-11-20 | 1992-07-08 |
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