JPS6461155A - Optical reception circuit - Google Patents
Optical reception circuitInfo
- Publication number
- JPS6461155A JPS6461155A JP62217652A JP21765287A JPS6461155A JP S6461155 A JPS6461155 A JP S6461155A JP 62217652 A JP62217652 A JP 62217652A JP 21765287 A JP21765287 A JP 21765287A JP S6461155 A JPS6461155 A JP S6461155A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- comparison
- input
- reception signal
- comparator
- 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.)
- Granted
Links
Landscapes
- Dc Digital Transmission (AREA)
- Optical Communication System (AREA)
Abstract
PURPOSE:To discriminate the content of logic level independently of an offset voltage of a reception signal, by giving respectively an integration processing signal of a reception signal to a 1st comparison input terminal and a feedback signal to its own comparison output reception signal to a 2nd comparison input terminal so as to apply level comparison of the input signals. CONSTITUTION:By the input of a reception signal S1, a signal S2 fed to an inverting input of the comparator 13 via an integration circuit 12 becomes the signal of the mode as shown in figure (b) by the repetition of charge/ discharge based on the integration time constant of the signal S1. Then a comparison output S4 by other comparator 13 is fed back positively to the signal S1 and the signal S3 fed to the noninverting input of the comparator 13 is the signal of the mode as shown in figure (c). Thus, a signal representing ground level or power voltage Vcc level in the mode as shown in figure (d) is outputted corresponding to the content of the logic level of the reception signal S1 as the comparison output S4 between the signals S2 and S3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62217652A JPH07118726B2 (en) | 1987-08-31 | 1987-08-31 | Comparison device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62217652A JPH07118726B2 (en) | 1987-08-31 | 1987-08-31 | Comparison device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6461155A true JPS6461155A (en) | 1989-03-08 |
JPH07118726B2 JPH07118726B2 (en) | 1995-12-18 |
Family
ID=16707608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62217652A Expired - Lifetime JPH07118726B2 (en) | 1987-08-31 | 1987-08-31 | Comparison device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07118726B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04180315A (en) * | 1990-11-15 | 1992-06-26 | Nec Corp | Photodetecting circuit |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52120748A (en) * | 1976-04-05 | 1977-10-11 | Nec Corp | Pulse detection circuit |
JPS54118148A (en) * | 1978-03-07 | 1979-09-13 | Nec Corp | Comparator circuit |
JPS59148458A (en) * | 1983-02-14 | 1984-08-25 | Mitsubishi Electric Corp | Optical receiver |
-
1987
- 1987-08-31 JP JP62217652A patent/JPH07118726B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52120748A (en) * | 1976-04-05 | 1977-10-11 | Nec Corp | Pulse detection circuit |
JPS54118148A (en) * | 1978-03-07 | 1979-09-13 | Nec Corp | Comparator circuit |
JPS59148458A (en) * | 1983-02-14 | 1984-08-25 | Mitsubishi Electric Corp | Optical receiver |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04180315A (en) * | 1990-11-15 | 1992-06-26 | Nec Corp | Photodetecting circuit |
Also Published As
Publication number | Publication date |
---|---|
JPH07118726B2 (en) | 1995-12-18 |
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