Patent
Private cellular system.
Mahshad Koohgoli,Bambino Fatica +1 more
- 15 Oct 1987
203
TL;DR: A cellular mobile radio communication (e.g., private cellular system, PCS) that does not have the constraint of being a well defined, pre-planned system was proposed in this paper.
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Abstract: A cellular mobile radio communication (e.g.telephone) system (10) hereinafter referred to as a private cellular system, PCS) that does not have the constraint of being a well defined, pre-planned system. The present invention differs from previous systems largely by the fact that it does not have to be well planned in advance. A user can simply install a base station (13) virtually wherever he desires. Each base station is "intelligent" and produces a dynamic allocation. This of course means that if one were to install such a system, for example in an office building, no studies would be required. One would simply install a series of base stations.
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Citations
Patent
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Mohsen Kavehrad,Peter John Mclane +1 more
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TL;DR: In this paper, the authors proposed a wireless PBX network where a plurality of local user transceivers using a first separate unique chip sequence pattern for information communication and a second common chip pattern for call-set up.
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Radio telephone system
Martin Cooper,Richard W Dronsuth,Albert J. Leitich,Jr Charles N Lynk,James Joseph Mikulski,John Francis Mitchell,Roy A Richardson,John Harold Sangster +7 more
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TL;DR: In this paper, a portable duplex radio telephone system with multiple base stations and a plurality of portable or mobile units is considered, and means are provided to automatically reduce the output power of each portable transmitter to the minimum level required for satisfactory communications in order to reduce battery drain and the interference caused by the portable transmitters.
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Patent
Method and apparatus for assigning duplex radio channels and scanning duplex radio channels assigned to mobile and portable radiotelephones in a cellular radiotelephone communications system
Larry C. Puhl,Ronald James Webb +1 more
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TL;DR: In this article, a microprocessor controlled base site controller maintains high quality communications paths to mobile and portable radiotelephones by periodically monitoring their signal strength and when signal strength degradations are detected.
157
Patent
Vehicle location system
Adrian B. Haemmig
- 08 Apr 1976
TL;DR: In this article, a vehicle location system with a plurality of stationary wayside stations positioned at predetermined geographical locations is proposed, which enables low power radio frequency signals to automatically communicate error free location information between the wayside station and the vehicle by maintaining the integrity of the signal.
151
Patent
Mobile telephone system for automatically paging absent mobile subscriber
Kai Tomokazu
- 14 Feb 1986
TL;DR: In this paper, the pager number signal from the radio transmitter/receiver (5A) is automatically sent by the paging system (4) to the page (7) through the exchange (2), thereby calling the mobile subscriber.
102