JPS5746262B2 - - Google Patents
Info
- Publication number
- JPS5746262B2 JPS5746262B2 JP50151487A JP15148775A JPS5746262B2 JP S5746262 B2 JPS5746262 B2 JP S5746262B2 JP 50151487 A JP50151487 A JP 50151487A JP 15148775 A JP15148775 A JP 15148775A JP S5746262 B2 JPS5746262 B2 JP S5746262B2
- 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
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
- H04M1/65—Recording arrangements for recording a message from the calling party
- H04M1/654—Telephone line monitoring circuits therefor, e.g. ring detectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/82—Line monitoring circuits for call progress or status discrimination
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Manipulation Of Pulses (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15148775A JPS5275104A (en) | 1975-12-18 | 1975-12-18 | Automatic answering telephone set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15148775A JPS5275104A (en) | 1975-12-18 | 1975-12-18 | Automatic answering telephone set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5275104A JPS5275104A (en) | 1977-06-23 |
| JPS5746262B2 true JPS5746262B2 (US20020051482A1-20020502-M00020.png) | 1982-10-02 |
Family
ID=15519563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15148775A Granted JPS5275104A (en) | 1975-12-18 | 1975-12-18 | Automatic answering telephone set |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5275104A (US20020051482A1-20020502-M00020.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0335981Y2 (US20020051482A1-20020502-M00020.png) * | 1985-12-09 | 1991-07-30 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57136700A (en) * | 1981-02-18 | 1982-08-23 | Nippon Electric Co | Voice recognizer with control tone detection |
| JPS58123227A (ja) * | 1982-01-18 | 1983-07-22 | Fujitsu Ltd | 信号検出回路 |
| JPH0270558U (US20020051482A1-20020502-M00020.png) * | 1988-11-16 | 1990-05-29 | ||
| JP2761078B2 (ja) * | 1990-03-27 | 1998-06-04 | 日本電信電話 株式会社 | 留守番電話機 |
| JP2734972B2 (ja) * | 1994-02-22 | 1998-04-02 | 村田機械株式会社 | 留守番電話機 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4922048A (US20020051482A1-20020502-M00020.png) * | 1972-06-16 | 1974-02-27 |
-
1975
- 1975-12-18 JP JP15148775A patent/JPS5275104A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4922048A (US20020051482A1-20020502-M00020.png) * | 1972-06-16 | 1974-02-27 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0335981Y2 (US20020051482A1-20020502-M00020.png) * | 1985-12-09 | 1991-07-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5275104A (en) | 1977-06-23 |
