JPS4838962A - - Google Patents
Info
- Publication number
- JPS4838962A JPS4838962A JP47092200A JP9220072A JPS4838962A JP S4838962 A JPS4838962 A JP S4838962A JP 47092200 A JP47092200 A JP 47092200A JP 9220072 A JP9220072 A JP 9220072A JP S4838962 A JPS4838962 A JP S4838962A
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/14—Demodulator circuits; Receiver circuits
-
- 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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Communication Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18116671A | 1971-09-16 | 1971-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4838962A true JPS4838962A (OSRAM) | 1973-06-08 |
Family
ID=22663161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47092200A Pending JPS4838962A (OSRAM) | 1971-09-16 | 1972-09-13 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3711777A (OSRAM) |
| JP (1) | JPS4838962A (OSRAM) |
| CA (1) | CA995760A (OSRAM) |
| ES (1) | ES406588A1 (OSRAM) |
| FR (1) | FR2154076A5 (OSRAM) |
| GB (1) | GB1355160A (OSRAM) |
| NL (1) | NL7212561A (OSRAM) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3766479A (en) * | 1971-10-04 | 1973-10-16 | Ncr | Carrier detection circuit |
| US3882272A (en) * | 1973-12-21 | 1975-05-06 | Xerox Corp | Carrier detector |
| US4009356A (en) * | 1974-01-31 | 1977-02-22 | Milgo Electronic Corporation | Data modems having data drop-out and data echo protection |
| DE2905471B1 (de) * | 1979-02-13 | 1980-02-21 | Siemens Ag | System zum Empfang frequenzmodulierter digitaler Nachrichtensignale |
| DE2628997C3 (de) * | 1976-06-28 | 1978-11-30 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | System zum Empfang frequenzmodulierter digitaler Nachrichtensignale |
| US4528678A (en) * | 1983-07-05 | 1985-07-09 | Westinghouse Electric Corp. | Nonlinear noise reduction apparatus with memory |
| USRE37141E1 (en) | 1984-09-10 | 2001-04-17 | Spectrum Information Technologies, Inc. | Cellular telephone data communication system and method |
| US4697281A (en) | 1986-03-14 | 1987-09-29 | Spectrum Cellular Communications Corporation, Inc. | Cellular telephone data communication system and method |
| ATE121954T1 (de) * | 1988-08-24 | 1995-05-15 | Marvin J Slepian | Endoluminale dichtung mit bisdegradierbaren polymeren. |
| US4972457A (en) | 1989-01-19 | 1990-11-20 | Spectrum Information Technologies, Inc. | Portable hybrid communication system and methods |
| USRE38645E1 (en) | 1989-01-19 | 2004-11-02 | Mlr, Llc | Portable hybrid communication system and methods |
| US5127041A (en) * | 1990-06-01 | 1992-06-30 | Spectrum Information Technologies, Inc. | System and method for interfacing computers to diverse telephone networks |
| US5249218A (en) * | 1992-04-06 | 1993-09-28 | Spectrum Information Technologies, Inc. | Programmable universal interface system |
| US5530737A (en) * | 1993-03-22 | 1996-06-25 | Phonex Corporation | Secure access telephone extension system and method |
| US5743633A (en) * | 1995-12-27 | 1998-04-28 | Physical Optics Corporation | Bar code illuminator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3628058A (en) * | 1970-02-24 | 1971-12-14 | Motorola Inc | Integrated dual time constant squelch circuit |
| US3654555A (en) * | 1970-08-19 | 1972-04-04 | Motorola Inc | Carrier and tone squelch circuit with elimination of noise at end of transmission |
-
1971
- 1971-09-16 US US00181166A patent/US3711777A/en not_active Expired - Lifetime
-
1972
- 1972-09-08 GB GB4171672A patent/GB1355160A/en not_active Expired
- 1972-09-11 CA CA151,425A patent/CA995760A/en not_active Expired
- 1972-09-11 ES ES406588A patent/ES406588A1/es not_active Expired
- 1972-09-13 JP JP47092200A patent/JPS4838962A/ja active Pending
- 1972-09-15 NL NL7212561A patent/NL7212561A/xx not_active Application Discontinuation
- 1972-09-15 FR FR7232885A patent/FR2154076A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES406588A1 (es) | 1975-10-01 |
| NL7212561A (OSRAM) | 1973-03-20 |
| FR2154076A5 (OSRAM) | 1973-05-04 |
| DE2244653B2 (de) | 1977-02-10 |
| GB1355160A (en) | 1974-06-05 |
| US3711777A (en) | 1973-01-16 |
| DE2244653A1 (de) | 1973-03-22 |
| CA995760A (en) | 1976-08-24 |