IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0965991
(2004-10-15)
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등록번호 |
US-7483397
(2009-01-27)
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발명자
/ 주소 |
- Meier,Robert C.
- Luse,Ronald E.
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출원인 / 주소 |
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대리인 / 주소 |
McAndrews, Held & Malloy, Ltd.
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인용정보 |
피인용 횟수 :
16 인용 특허 :
112 |
초록
▼
An apparatus and a method for routing data in a radio data communication system having one or more host computers, one or more intermediate base stations, and one or more RF terminals organizes the intermediate base stations into an optimal spanning-tree network to control the routing of data to and
An apparatus and a method for routing data in a radio data communication system having one or more host computers, one or more intermediate base stations, and one or more RF terminals organizes the intermediate base stations into an optimal spanning-tree network to control the routing of data to and from the RF terminals and the host computer efficiently and dynamically. Communication between the host computer and the RF terminals is achieved by using the network of intermediate base stations to transmit the data.
대표청구항
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What is claimed is: 1. In a network having wireless communication capability for providing communication pathways within a premises in which the network comprises a plurality of wireless portable terminals and a plurality of bridges, the plurality of bridges being located in spaced relation within
What is claimed is: 1. In a network having wireless communication capability for providing communication pathways within a premises in which the network comprises a plurality of wireless portable terminals and a plurality of bridges, the plurality of bridges being located in spaced relation within the premises and comprising at least two wireless bridges, a particular bridge of the plurality of bridges comprising: a wireless bridge that is configured to form a spanning tree to maintain communication pathways between any two of the plurality of wireless portable terminals as the wireless portable terminals roam within the premises, wherein the wireless bridge is configured to communicate with at least one of the plurality of wireless portable terminals when selected by the at least one of the plurality of the wireless portable terminals. 2. The particular bridge according to claim 1, wherein the wireless bridge is in the network in which the network comprises a host computer. 3. The particular bridge according to claim 2, wherein, in the network, the communication pathways do not involve relaying by the host computer. 4. The particular bridge according to claim 1, wherein, in the network, at least one of the plurality of wireless portable terminals includes a keyboard. 5. The particular bridge according to claim 1, wherein, in the network, at least one of the plurality of wireless portable terminals comprises a bar code reader. 6. The particular bridge according to claim 5, wherein, in the network, the bar code reader is integrated into the at least one of the plurality of wireless portable terminals. 7. In a network having wireless communication capability to provide communication pathways within a premises in which the network comprises a first wireless portable terminal, a second terminal and a plurality of bridges that are located in spaced relation within the premises, a particular bridge of the plurality of bridges comprising: a wireless bridge that is configured to form wireless communication pathways between at least one other of the plurality of bridges to permit the first wireless portable terminal and the second terminal to communicate as the first wireless portable terminal and the second terminal roam within the premises, wherein the wireless bridge is configured to communicate with the first wireless portable terminal or the second terminal when selected by the first wireless portable terminal or the second terminal. 8. The particular bridge according to claim 7, wherein the wireless bridge is in the network in which the network comprises a host computer, and wherein, in the network, the wireless communication pathways do not involve the host computer. 9. The particular bridge according to claim 7, wherein, in the network, the first wireless portable terminal or the second terminal comprises a keyboard. 10. The particular bridge according to claim 7, wherein, in the network, the first wireless portable terminal or the second terminal comprises a bar code reader. 11. The particular bridge according to claim 10, wherein, in the network, the bar code reader is integrated with the first wireless portable terminal or the second terminal. 12. In a network having spread spectrum wireless communication capability that provide communication pathways in which the network comprises wireless mobile communication devices and a plurality of bridges, the plurality of bridges comprising at least two wireless bridges, a particular bridge of the plurality of bridges comprising a wireless bridge that is configured to form a spanning tree to maintain communication pathways between any two of the wireless mobile communication devices as the wireless mobile communication devices roam, the wireless bridge being configured to communicate with at least one of the wireless mobile communication devices when selected by the at least one of the wireless mobile communication devices. 13. The particular bridge according to claim 12, wherein the wireless bridge is in the network and wherein the network comprises a host computer. 14. The particular bridge according to claim 13, wherein, in the network, the communication pathways do not involve relaying by the host computer. 15. The particular bridge according to claim 12, wherein, in the network, at least one of the wireless mobile communication devices comprises a keyboard. 16. The particular bridge according to claim 12, wherein, in the network, at least one of the wireless mobile communication devices comprises a bar code reader. 17. The particular bridge according to claim 16, wherein, in the network, the bar code reader is integrated into the at least one of the wireless mobile communication devices. 18. The particular bridge according to claim 12, wherein the wireless bridge comprises software that implements a spread spectrum wireless communications protocol. 19. The particular bridge according to claim 12, wherein the wireless bridge comprises software that comprises a medium access control layer, a bridging layer and a logical link control layer. 20. The particular bridge according to claim 12, wherein the wireless bridge comprises software that uses a HELLO protocol. 21. The particular bridge according to claim 20, wherein the software implements HELLO synchronization. 22. The particular bridge according to claim 12, wherein the wireless bridge comprises software that implements a polling protocol. 23. The particular bridge according to claim 12, wherein the wireless bridge comprises software that implements a spanning tree protocol. 24. In a network having spread spectrum wireless communication capability to provide communication pathways in which the network comprises a first wireless mobile communication device, a second wireless mobile communication device and a plurality of bridges, a particular bridge of the plurality of bridges comprising: a wireless bridge that is configured to form wireless communication pathways with at least one other of the plurality of bridges to permit the first wireless mobile communication device and the second wireless mobile communication device to communicate as the first wireless mobile communication device and the second wireless mobile communication device roam, the wireless bridge being configured to communicate with the first wireless mobile communication device or the second wireless mobile communication device when selected by the first wireless mobile communication device or the second wireless mobile communication device. 25. The particular bridge according to claim 24, wherein the wireless bridge is in the network, wherein the network comprises a host computer, and wherein, in the network, the wireless communication pathways do not involve the host computer. 26. The particular bridge according to claim 24, wherein, in the network, the first wireless mobile communication device or the second wireless mobile communication device comprises a keyboard. 27. The particular bridge according to claim 24, wherein, in the network, the first wireless mobile communication device or the second wireless mobile communication device comprises a bar code reader. 28. The particular bridge according to claim 24, wherein, in the network, the bar code reader is integrated with the first wireless mobile communication device or the second wireless mobile communication device.
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