Bernie D. Tull Jr.
Engineering at Woodmont Pl, Shreveport, LA

License number
Louisiana PE.0013486
Issued Date
Nov 21, 1972
Category
Civil Engineer
Type
Mechanical Engineer
Address
Address
738 Woodmont Pl, Shreveport, LA 71108

Professional information

Bernie Tull Photo 1

Wireless Portable Transceiver Arranged For Providing Isolation Between Radio Frequency And Audio Signals

US Patent:
5884197, Mar 16, 1999
Filed:
Nov 30, 1995
Appl. No.:
8/565530
Inventors:
George L. Ricardo - Shreveport LA
William Davis Simmons - Shreveport LA
Bernie Dee Tull - Shreveport LA
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
H04B 138
US Classification:
455575
Abstract:
Cross-over modulation between radio frequency circuits and audio circuits is minimized in a wireless portable transceiver by locating all audio circuitry in a first section of the portable transceiver and all radio frequency circuitry in a second, separate section of the portable transceiver. In view of modality considerations in small portable transceivers, an audio signal is either radiated or received in the vicinity of the radio frequency circuitry. Isolation of the audio signal is achieved by routing this signal while in its acoustic form. Since audio signals in an electrical form are not routed around or near the radio frequency circuitry, cross-over modulation does not occur between the radio frequency circuitry and the audio circuitry.


Bernie Tull Photo 2

Radio Signal Safety Facilities For Controlling The Operation Of A Work Fabricating Device

US Patent:
4205239, May 27, 1980
Filed:
Feb 21, 1978
Appl. No.:
5/879325
Inventors:
Jerold F. Arts - Shreveport LA
William L. Owen - Shreveport LA
Bernie D. Tull - Shreveport LA
Assignee:
Western Electric Company, Inc. - New York NY
International Classification:
G05B 903
US Classification:
307328
Abstract:
A two-hand safety system utilizing an operator's skin resistance is provided to control the operation of a work fabricating tool. An operator must place both hands on a pair of spaced electrodes in order to initiate operation of a radio digital signal generator which transmits a digital signal to a receiver. The receipt of the digital signal in conjunction with a predetermined positioning of a freely slidable work holder energize a circuit to control the operation of the work fabricating tool.


Bernie Tull Photo 3

Telephone Handset

US Patent:
D384673, Oct 7, 1997
Filed:
Nov 9, 1995
Appl. No.:
D/046215
Inventors:
Ronald Dale Hernandez - Shreveport LA
George L. Ricardo - Shreveport LA
Linda A. Roberts - Sea Bright NJ
John Stoddard - London, GB2
Suzy Stone - St. Albans, GB2
Leslie G. Tudor - Glen Ridge NJ
Bernie Dee Tull - Shreveport LA
Julian F. Vanhoof - Shreveport LA
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
1403
US Classification:
D14248