JPS5232923B2 - - Google Patents
Info
- Publication number
- JPS5232923B2 JPS5232923B2 JP8041673A JP8041673A JPS5232923B2 JP S5232923 B2 JPS5232923 B2 JP S5232923B2 JP 8041673 A JP8041673 A JP 8041673A JP 8041673 A JP8041673 A JP 8041673A JP S5232923 B2 JPS5232923 B2 JP S5232923B2
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
- H04M11/064—Data transmission during pauses in telephone conversation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/24—Testing correct operation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Dc Digital Transmission (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27295372A | 1972-07-18 | 1972-07-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS49132908A JPS49132908A (OSRAM) | 1974-12-20 |
| JPS5232923B2 true JPS5232923B2 (OSRAM) | 1977-08-25 |
Family
ID=23041939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8041673A Expired JPS5232923B2 (OSRAM) | 1972-07-18 | 1973-07-18 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3767860A (OSRAM) |
| JP (1) | JPS5232923B2 (OSRAM) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3927259A (en) * | 1974-02-13 | 1975-12-16 | Atlantic Res Corp | Signal identification system |
| US3927260A (en) * | 1974-05-07 | 1975-12-16 | Atlantic Res Corp | Signal identification system |
| US3920907A (en) * | 1974-07-03 | 1975-11-18 | Us Navy | Periodic signal detector |
| US4027102A (en) * | 1974-11-29 | 1977-05-31 | Pioneer Electronic Corporation | Voice versus pulsed tone signal discrimination circuit |
| JPS6016145B2 (ja) * | 1979-03-20 | 1985-04-24 | 株式会社日立製作所 | クロツク信号抽出方式 |
| DE3236000A1 (de) * | 1982-09-29 | 1984-03-29 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | Verfahren zum klassifizieren von audiosignalen |
| US4684887A (en) * | 1986-06-24 | 1987-08-04 | General Battery Corporation | High voltage test confirmation apparatus |
| US4752926A (en) * | 1986-10-01 | 1988-06-21 | Itt Defense Communications, A Division Of Itt Corporation | Orderwire detector for communication systems |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2974281A (en) * | 1957-11-01 | 1961-03-07 | Bell Telephone Labor Inc | Selective signal recognition system |
| US3377428A (en) * | 1960-12-29 | 1968-04-09 | Ibm | Voiced sound detector circuits and systems |
| US3315246A (en) * | 1964-01-20 | 1967-04-18 | Gen Signal Corp | Signal absence detection circuit |
| US3448215A (en) * | 1966-08-22 | 1969-06-03 | Northrop Corp | Monitoring device for distinguishing between voice and data signals |
| US3524935A (en) * | 1967-12-19 | 1970-08-18 | Automatic Elect Lab | Data transmission subset with mode indicating and selection means |
-
1972
- 1972-07-18 US US00272953A patent/US3767860A/en not_active Expired - Lifetime
-
1973
- 1973-07-18 JP JP8041673A patent/JPS5232923B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS49132908A (OSRAM) | 1974-12-20 |
| US3767860A (en) | 1973-10-23 |