David James Madsen
Burglar Alarm in Sandy, UT
License number
Utah 6937318-6502
Issued Date
May 29, 2008
Expiration Date
Nov 30, 2010
Category
Burglar Alarm
Type
Burglar Alarm Company Agent
Address
Address
Sandy, UT
Professional information
Guide Wire Communication System And Method
US Patent:
4902948, Feb 20, 1990
Filed:
Jul 1, 1988
Appl. No.:
7/214242
Inventors:
Leigh E. Sherman - North Wales PA
Gary L. Whatcott - Holladay UT
Richard M. Dicks - Salt Lake City UT
David C. Madsen - Sandy UT
Gary L. Whatcott - Holladay UT
Richard M. Dicks - Salt Lake City UT
David C. Madsen - Sandy UT
Assignee:
Eaton-Kenway, Inc. - Salt Lake City UT
International Classification:
G05D 103
US Classification:
318580
Abstract:
A guidance system for guiding a plurality of unmanned vehicles along guide wires. A plurality of data communication circuits are provided which form an extensive network. A traffic control computer composes a coded vehicle instruction for assigning tasks and allocates resources to said unmanned vehicles. The traffic control computer polls the status of each vehicle at varying time intervals and receives a response from said vehicle.
The network connecting the computer and the communication circuits prevents reception of data transmissions from more than one vehicle at a time. Other messages are temporarily stored.
Data transmitters generate low frequency, low power signals which have a high data transmission rate.
Digital data is converted at the transmitters into cosine waveforms of selected frequencies. The cosine waveforms are transposed into sine waveforms at receivers.
Guide Wire Communication System And Method
US Patent:
4791570, Dec 13, 1988
Filed:
Jun 11, 1986
Appl. No.:
6/873032
Inventors:
Leigh E. Sherman - North Wales PA
Gary L. Whatcott - Holladay UT
Richard M. Dicks - Salt Lake City UT
David C. Madsen - Sandy UT
Gary L. Whatcott - Holladay UT
Richard M. Dicks - Salt Lake City UT
David C. Madsen - Sandy UT
Assignee:
Eaton-Kenway, Inc. - Salt Lake City UT
International Classification:
G06F 1548
US Classification:
364436
Abstract:
A guidance system for guiding a plurality of unmanned vehicles along guide wires. A plurality of data communication circuits are provided which form an extensive network. A traffic control computer composes a coded vehicle instruction for assigning tasks and allocates resources to said unmanned vehicles. The traffic control computer polls the status of each vehicle at varying time intervals and receives a response from said vehicle. The network connecting the computer and the communication circuits prevents reception of data transmissions from more than one vehicle at a time. Other messages are temporarily, stored. Data transmitters generate low frequency, low power signals which have a high data transmission rate. Digital data is converted at the transmitters into cosine waveforms of selected frequencies. The cosine waveforms are transposed into sine waveforms at receivers.