JPS5244171B1 - - Google Patents
Info
- Publication number
- JPS5244171B1 JPS5244171B1 JP748671A JP748671A JPS5244171B1 JP S5244171 B1 JPS5244171 B1 JP S5244171B1 JP 748671 A JP748671 A JP 748671A JP 748671 A JP748671 A JP 748671A JP S5244171 B1 JPS5244171 B1 JP S5244171B1
- Authority
- JP
- Japan
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3504870A | 1970-05-06 | 1970-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5244171B1 true JPS5244171B1 (ja) | 1977-11-05 |
Family
ID=21880306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP748671A Pending JPS5244171B1 (ja) | 1970-05-06 | 1971-02-19 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5244171B1 (ja) |
| BE (1) | BE766778A (ja) |
| CA (1) | CA942679A (ja) |
| DE (1) | DE2122481C2 (ja) |
| FR (1) | FR2088395B1 (ja) |
| GB (1) | GB1310337A (ja) |
| NL (1) | NL7105991A (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56123176A (en) * | 1980-03-05 | 1981-09-28 | Ricoh Co Ltd | Processing method for picture signal |
-
1971
- 1971-01-06 CA CA102,072A patent/CA942679A/en not_active Expired
- 1971-02-19 JP JP748671A patent/JPS5244171B1/ja active Pending
- 1971-05-03 NL NL7105991A patent/NL7105991A/xx unknown
- 1971-05-04 FR FR7116872A patent/FR2088395B1/fr not_active Expired
- 1971-05-05 GB GB1314471A patent/GB1310337A/en not_active Expired
- 1971-05-06 DE DE19712122481 patent/DE2122481C2/de not_active Expired
- 1971-05-06 BE BE766778A patent/BE766778A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2122481A1 (de) | 1971-11-25 |
| BE766778A (fr) | 1971-11-08 |
| FR2088395B1 (ja) | 1976-12-03 |
| GB1310337A (en) | 1973-03-21 |
| FR2088395A1 (ja) | 1972-01-07 |
| NL7105991A (ja) | 1971-11-09 |
| DE2122481C2 (de) | 1983-08-04 |
| CA942679A (en) | 1974-02-26 |