Navigation wristwear

Details Navigation wristwear Navigation wristwear

1997-04-08

1998-07-14

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

342352, G01S 502

Patent

active

057811555

ABSTRACT:
A navigation wristwear device comprises a GPS receiver fully disposed in a wrist watch type housing. A transparent microwave patch antenna is patterned of indium-tin-oxide on sapphire in front of an LCD time, position and velocity display. A bezel provides a protective window. A low-noise amplifier, downconversion, code processing and navigation processing are all provided on a single integrated circuit. Photovoltaic solar cells to each side of the LCD help keep a battery charged.

REFERENCES:
patent: 4571193 (1986-02-01), Murakami
patent: 5293170 (1994-03-01), Lovenz et al.
patent: 5347546 (1994-09-01), Abadi et al.
patent: 5627548 (1997-05-01), Woo et al.
patent: 5652570 (1997-07-01), Lepkofker

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