Artifact Details

Title

Van Diggelen, Frank oral history

Catalog Number

102738864

Type

Text

Date

2018-08-23

Contributor

Rino, Charles, Interviewer
Van Diggelen, Frank, Interviewee

Publisher

Computer History Museum

Place of Publication

Mountain View, CA

Extent

26 p.

Format

PDF

Description

The history of GPS is heavily weighted toward the remarkable story of how GPS was conceived and constructed. Frank van Diggelen is one of the architects of Assisted GPS, which is largely unknown to most GPS users. From his Oral History we learn that GPS signals are too weak to be acquired by an unaided smart phone. The fact that GPS is even available on hand-held devices came about because of a 911 deficiency. The location of early cell-phone emergency calls was unknown.
Dr. van Diggelen also points out that while the first bulky military GPS receivers achieved sub-meter accuracy, inexpensive hand-held A-GPS devices are now capable of achieving the same accuracy. New applications are evolving at a Moore’s law pace.

Category

Transcription

Collection Title

CHM Oral History Collection

Credit

Computer History Museum

Lot Number

X8744.2019

Related Records

102738865 Van Diggelen, Frank oral history