Michael Fromm
15 Papers
126 Citations
Michael Fromm is an academic researcher. The author has contributed to research in topics: Transceiver & Signal. The author has an hindex of 5, co-authored 12 publications.
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Papers
Patent
Method for carrying out a keyless access authorisation check and keyless access authorisation check device
Detlev Kramer,Volker Pretzlaff,Rainer Vens,Paul Vogels,Michael Fromm,Dirk Wolf,Peter Raab +6 more
- 19 Aug 1999
TL;DR: In this paper, a keyless access authorisation check is carried out by means of wireless communication between a transceiver unit allocated to a base station and a mobile identification transmitter, in order to check that the person carrying the ID transmitter is authorized to gain access.
65
Patent
Method of conducting keyless access authorization checks, e.g. for motor vehicles, involves evaluating difference between reference code signal and response signal characteristic
Detlev Kramer,Volker Pretzlaff,Rainer Vens,Paul Vogels,Michael Fromm +4 more
- 01 Sep 1998
TL;DR: In this article, the authors present a keyless access authorization check between a base station and a mobile ID transponder, which is based on a relative determination involving the difference in a signal characteristic dependent on signal transition time varying with distance between a reference code signal measured in the BS and the response signal.
21
Patent
Method for transmitting data protocol on HF radio path e.g. for motor vehicle telemetry, involves evaluating data protocol received on one or the other of two frequencies or on two frequencies
Michael Fromm,Volker Pretzlaff,Rainer Vens,Paul Vogels +3 more
- 09 Oct 2002
TL;DR: In this article, a method for transmission of data protocol on a HF-path, in which the data protocol is sent/transmitted on two or more carriers of different frequency (fctx 1; fctx 2), is presented.
12
Patent
Processing method for access control without keys, using identification data generated by portable device
Michael Fromm,Rainer Vens +1 more
- 01 Sep 1998
TL;DR: In this paper, the authors present a transponder which has a processor and a transceiver for communication with a portable identification device, and the access request from the identification device is processed and a transmitter returns an acknowledgement in the form of a modulated signal.
7
Patent
Method for transmitting a data protocol on a hf radio link
Volker Pretzlaff,Michael Fromm,Rainer Vens,Paul Vogels +3 more
- 07 Oct 2003
TL;DR: In this paper, a method for transmitting a data protocol on a HF radio link, between a transmitter which is microprocessor driven and a receiver which is likewise microprocessor-driven and receives the data protocol, is described.
6