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Patent

Electronic test equipment

Peter Myers
TLDR
In this paper, a diagnostic test apparatus for a cellular communications system mobile transmitter/receiver unit, which is adapted for direct connection to the aerial connection of an mobile unit (4) of the system whilst installed in a vehicle, was described.
Abstract
Diagnostic test apparatus for a cellular communications system mobile transmitter/receiver unit, which apparatus is adapted for direct connection to the aerial connection of an mobile unit (4) of the system whilst installed in a vehicle, and which is arranged to simulate a land/base station of the system in such manner that when in operation the diagnostics unit appears to the mobile unit as a land/base station of the system. The diagnostic test apparatus includes means for producing any of a plurality of signals and/or functions for simulating corresponding signals and/or functions involved in the system, and means for enabling the application of such simulation signals/functions to the mobile unit (4) to be tested whilst the latter is in situ in its operationally installed condition in such manner as to test the response of the mobile unit to such signals and/or functions.

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Citations
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Method and apparatus for analyzing cellular telephone network

TL;DR: In this paper, a cellular telephone network with the capability to detect faulty cellular telephones in use in the network includes measurement units at some or all of the cell sites, which are accumulated at a test system controller.
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Self-diagnostic system for cellular-transceiver systems with remote-reporting capabilities

TL;DR: In this article, a self-diagnostic system for checking all functions of a cellular-transceiver system having a cellular interface unit, which interface unit couples a standard telephone set to a cellular transceiver, and interface unit converts the DTMF or pulse-type of dialing signals into digital format for transmission to the cellular transceivers, whereby the dialed number made on the land type of telephone may be used to call a number over the cellular system.
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Apparatus and methods for product acceptance testing on a wireless device

TL;DR: In this paper, a product acceptance test application disposed on the wireless device and including simulated communications representative of actual communications with a wireless network is presented, and a communications processing engine is operable to process the simulated communications.
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Self-diagnostic system for cellular-transceiver systems

TL;DR: In this paper, a self-diagnostic system for checking all functions of a cellular-transceiver system having a cellular interface unit (10), which interface unit couples a standard telephone set (T,R) to a cellular transceiver, converts the DTMF or pulse-type dialing signals into digital format for transmission to the cellular Transceiver in which, the dialed number made on the landline telephone may be used to call a number over the cellular system.
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System and method for collection of transmission characteristics

TL;DR: In this paper, a system and method for collecting fingerprint reference wave forms under controlled conditions includes a radio frequency (RF) enclosure designed to receive a cellular telephone, where a processor can capture one or more reference waveforms that can be used to generate a fingerprint indicative of a transmission characteristic of the transmitter of the cellular telephone.
References
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Patent

System for maintenance and diagnosis of mobile telephone equipment

TL;DR: In this article, an input/output port of a control unit for effecting desired controlling and processing for individual parts of the mobile telephone equipment on the basis of stored program control is inputted with test mode information in the form of a logic signal supplied manually or a specified dial number signal supplied by dialing a telephone unit so as to switch the mobile phone equipment to a test mode.
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Identity-ROM emulator for Multi Channel Access wireless apparatus

TL;DR: A test equipment for an MCA (Multi Channel Access) wireless apparatus, which evaluates and judges the correct operation of the MCA wireless apparatus by sending and receiving therefrom check signals by the operation of a keyboard of a personal computer is described in this paper.