JPS4974407A - - Google Patents
Info
- Publication number
- JPS4974407A JPS4974407A JP48112421A JP11242173A JPS4974407A JP S4974407 A JPS4974407 A JP S4974407A JP 48112421 A JP48112421 A JP 48112421A JP 11242173 A JP11242173 A JP 11242173A JP S4974407 A JPS4974407 A JP S4974407A
- 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
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
- H04M9/087—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using different frequency bands for transmitting and receiving paths ; using phase shifting arrangements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2249257A DE2249257A1 (de) | 1972-10-07 | 1972-10-07 | Verfahren zum aendern der frequenzen eines nachrichtensignals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4974407A true JPS4974407A (ja) | 1974-07-18 |
Family
ID=5858443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48112421A Pending JPS4974407A (ja) | 1972-10-07 | 1973-10-08 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4974407A (ja) |
| DE (1) | DE2249257A1 (ja) |
| FR (1) | FR2202401B1 (ja) |
| GB (1) | GB1444810A (ja) |
| IT (1) | IT1003145B (ja) |
| ZA (1) | ZA737683B (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU169185B (ja) * | 1974-06-05 | 1976-10-28 | ||
| GB2151886A (en) * | 1983-12-21 | 1985-07-24 | British Broadcasting Corp | Conditional-access broadcast transmission |
| RU2008120641A (ru) | 2005-10-24 | 2009-12-10 | Конинклейке Филипс Электроникс Н.В. (Nl) | Устройство и способ для обработки звуковых данных |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3444396A (en) * | 1965-03-24 | 1969-05-13 | Rca Corp | Signal translating circuit providing signal-controlled time delay |
| US3559103A (en) * | 1965-10-05 | 1971-01-26 | Duane H Cooper | Method of delay modulation |
| AU459101B2 (en) * | 1972-02-10 | 1975-03-20 | Matsushita Electric Industrial Co., Ltd. | Samplling modulation system for an electronic misical instrument |
| US3749837A (en) * | 1972-05-02 | 1973-07-31 | J Doughty | Electronic musical tone modifier for musical instruments |
-
1972
- 1972-10-07 DE DE2249257A patent/DE2249257A1/de active Pending
-
1973
- 1973-09-28 GB GB4552573A patent/GB1444810A/en not_active Expired
- 1973-10-01 ZA ZA737683A patent/ZA737683B/xx unknown
- 1973-10-02 FR FR7335126A patent/FR2202401B1/fr not_active Expired
- 1973-10-04 IT IT29726/73A patent/IT1003145B/it active
- 1973-10-08 JP JP48112421A patent/JPS4974407A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ZA737683B (en) | 1974-08-28 |
| FR2202401A1 (ja) | 1974-05-03 |
| FR2202401B1 (ja) | 1977-03-11 |
| IT1003145B (it) | 1976-06-10 |
| DE2249257A1 (de) | 1974-04-11 |
| GB1444810A (en) | 1976-08-04 |