Phillip B Hall

US Patent:

55068863, Apr 9, 1996

Filed:

Jul 17, 1995

Appl. No.:

8/503257

Inventors:

Kristine P. Maine - Phoenix AZ
Ann K. Miller - Mesa AZ
Phillip E. Hall - Scottsdale AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04M 1100

US Classification:

379 57

Abstract:

A paging system (10) includes any number of spaced apart transmitters (12), each of which has its own area (15) of coverage. A population of subscriber units (24) freely roams between the areas (15). When a subscriber unit (24) roams to a new area (15), a call is placed from a telephone instrument (22) to a destination controller (28) through the public switched telecommunication network (21). A subscriber ID and location data are transferred to the system (10) during this call. The location data are used internally by the system (10) to route pages to only the transmitters (12) whose areas (15) correspond to the location data, and only these transmitters (12) broadcast the pages. Subscriber units (24) may generate the location data which the system (10) uses in routing pages to transmitters (12). A position-determining receiver (42) may directly obtain location data from a positioning system (34). Alternatively, location data may be obtained from transmissions broadcast by the transmitters (12).

US Patent:

46916342, Sep 8, 1987

Filed:

Jun 19, 1986

Appl. No.:

6/875910

Inventors:

John D. Titus - Phoenix AZ
Phillip E. Hall - Scottsdale AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

F42C 1522
F42C 1540

US Classification:

102245

Abstract:

A safety and arming mechanism wherein a sliding member is held in an out-of-line position breaking the fuze train. An actuator releases the sliding member and moves the sliding member, which contains a stab detonator, in-line and towards a firing pin completing the fuze train. Arming and detonating occur at the same time when the fuze train is completed and the stab detonator is impaled on the firing pin.