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Inventor

Christopher J. Collier

Inventor
Carshalton Beeches, GB

Overview

3→
Patents
1989–1991
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H03Dprimary
H03DDemodulation or transference of modulation from one carrier to another40%
H04BTransmission20%
H04JMultiplex communication20%
H04MTelephonic communication20%
PatentTitleYear
5,073,899'Transmission system for sending two signals simultaneously on the same communications channel'19915,052,050'Direct conversion FM receiver'19914,803,700'Method of, and demodulator for, digitally demodulating an SSB signal'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1991Patents assigned to PHILIPS CORP (3)· patent assignee history
1989–1991Based in Carshalton Beeches, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PHILIPS CORP31989–1991
Locations
LocationPatentsSpan
Carshalton Beeches, GB31989–1991