FIELD: communication. SUBSTANCE: invention can be used for emergency call of registered or team of doctors on duty. According to method, aline with transmission, reception and memorizing the call signal in radio frequency range, call signal is transmitted in infrared range, and reset of memory is provided automatically by call signal in infrared range in close vicinity to transmitter. EFFECT: improved reliability of call owing to provision of automatic clearing of call on receiver only in close vicinity to transmitter. 4 dwg
Title | Year | Author | Number |
---|---|---|---|
DEVICE FOR TRANSMISSION OF INFORMATION AT SHUNTING | 1999 |
|
RU2179518C2 |
INFORMATION TRANSCEIVING SYSTEM | 0 |
|
SU1464191A1 |
FIRE-ALARM SYSTEM | 1996 |
|
RU2110094C1 |
DEVICE FOR CALLING IN EMERGENCY HELP, OPERATIVE COMMUNICATION AND SENDING CONCEALED RADIO SIGNALS | 2004 |
|
RU2277264C2 |
MICROWAVE DEVICE FOR NONDESTRUCTIVE MEASUREMENTS OF ELECTROPHYSICAL PARAMETERS OF INSULATING MATERIALS | 2001 |
|
RU2188433C1 |
GEAR MEASURING LOADED Q-FACTOR OF SUPERHIGH FREQUENCY RESONATOR | 2000 |
|
RU2169928C1 |
TELEMETRY SYSTEM FOR STATIONARY AND MOBILE OBJECTS | 1998 |
|
RU2143745C1 |
DEVICE FOR MONITORING VEHICLE MOVEMENT | 0 |
|
SU1483472A1 |
DATA RECEIVING AND TRANSMITTING SYSTEM | 0 |
|
SU1411795A1 |
DEVICE FOR AUTOMATIC RADIOTELEPHONE COMMUNICATION | 1991 |
|
RU2010433C1 |
Authors
Dates
2002-12-27—Published
2000-11-28—Filed