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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0598234 (1996-02-07) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 375 인용 특허 : 0 |
A repeater for use in a two way communication system for retransmitting information between a first device and a second device to help ensure reliable two way communication between the devices, comprising: a transmitter/receiver, the transmitter/receiver receiving signals from the first and second d
A repeater for use in a two way communication system for retransmitting information between a first device and a second device to help ensure reliable two way communication between the devices, comprising: a transmitter/receiver, the transmitter/receiver receiving signals from the first and second devices and transmitting the received signals for reception by the respective first and second devices; and further wherein a direct communication path for the information between the first and second devices is provided, the direct communication path being intermittently unreliable, the repeater providing an additional path for the information between the first and second devices; the repeater being spaced from said first and second devices by a specified distance, said specified distance being significantly less than a theoretical maximum communication distance thereby to ensure communication reliability. A plurality of repeaters can be provided in the system as the overall system expands when additional first and second devices, such as master units and control devices, are added. The plural repeaters employ a repeater transmission sequence in order to ensure reliability of communication. In addition, the repeaters build a bit map of status information received during the repeater sequence to ensure that all status information is received by each master unit.
[ What is claimed is:] [1.] A repeater for use in a two way communication system for retransmitting information between a first device and a second device to help ensure reliable two way communication between the devices, the repeater comprising:a transmitter/receiver, the transmitter/receiver recei
[ What is claimed is:] [1.] A repeater for use in a two way communication system for retransmitting information between a first device and a second device to help ensure reliable two way communication between the devices, the repeater comprising:a transmitter/receiver, the transmitter/receiver receiving information in signals from the first and second devices and transmitting the received information in signals for reception by the respective second and first devices;and further wherein a direct communication path for the information between the first and second devices is provided, the direct communication path being intermittently unreliable; the repeater providing an additional path for the information between the first and second devices;the repeater being spaced from said first and second devices by respective specified distances, said respective specified distances being less than a theoretical maximum communication distance between the repeater and each of the first and second devices; andfurther comprising a plurality of second devices, said first device comprising a master unit, said plurality of second devices comprising control devices for controlling respective electrical devices;the master unit transmitting control information to establish a status of respective ones of the electrical devices, the control devices being adapted to respond to selected control information to command the respective electrical devices to a status directed by the control information, the control device generating status information for transmitting to the master unit;the repeater comprising an information combiner for generating combined information on the status of all the electrical devices, the combined information being transmitted for reception at least once by said master unit.
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