Time-multiplexed short-range magnetic communications

Details Time-multiplexed short-range magnetic communications Time-multiplexed short-range magnetic communications

1997-04-23

1999-11-09

Pham, Chi H.

Multiplex communications

Communication over free space

Combining or distributing information via time channels

455101, H04J 300

Patent

active

059827645

ABSTRACT:
A magnetic induction time-multiplexed two-way short-range wireless communications system, and related method, includes a first portable unit and a second portable unit. The first portable unit receives first unit input signals and provides first unit output signals. Also, the first portable unit includes a first unit transducer system for generating a first inductive field based upon the first unit input signals during a first time slot and for converting a second inductive field into the first unit output signals during a second time slot. The second portable unit receives second unit input signals and provides second unit output signals. Also, the second portable unit includes a second unit transducer system for generating the second inductive field based upon the second unit input signals during the second time slot and for converting the first inductive field into the second unit output signals during the first time slot.

REFERENCES:
patent: 3617890 (1971-11-01), Kurauchi et al.
patent: 3898565 (1975-08-01), Takeuchi et al.
patent: 4061972 (1977-12-01), Burgess
patent: 4117271 (1978-09-01), Teeter et al.
patent: 4160952 (1979-07-01), Seastrand, Jr.
patent: 4334315 (1982-06-01), Ono et al.
patent: 4334316 (1982-06-01), Tanaka
patent: 4373207 (1983-02-01), Hecken
patent: 4373210 (1983-02-01), Karabinis et al.
patent: 4442434 (1984-04-01), Baekgaard
patent: 4489330 (1984-12-01), Marutake et al.
patent: 4513412 (1985-04-01), Cox
patent: 4542532 (1985-09-01), McQuilkin
patent: 4584707 (1986-04-01), Goldberg et al.
patent: 4600829 (1986-07-01), Walton
patent: 4633519 (1986-12-01), Gotoh
patent: 4647722 (1987-03-01), Nishida et al.
patent: 4654883 (1987-03-01), Iwata
patent: 4669109 (1987-05-01), LeCheviller et al.
patent: 4733402 (1988-03-01), Monsen
patent: 4747158 (1988-05-01), Goldberg et al.
patent: 4752776 (1988-06-01), Katzenstein
patent: 4845751 (1989-07-01), Schwab
patent: 4918737 (1990-04-01), Luethi
patent: 4967695 (1990-11-01), Giunta
patent: 5054112 (1991-10-01), Ike
patent: 5247293 (1993-09-01), Nakagawa
patent: 5276686 (1994-01-01), Ito
patent: 5276920 (1994-01-01), Kuisma
patent: 5390357 (1995-02-01), Nobusawa et al.
patent: 5437057 (1995-07-01), Richley et al.
patent: 5553312 (1996-09-01), Gattey et al.
patent: 5568516 (1996-10-01), Strohallen et al.
patent: 5596638 (1997-01-01), Paterson et al.
patent: 5615229 (1997-03-01), Sharma et al.
patent: 5722050 (1998-02-01), Chen
patent: 5771438 (1998-06-01), Palermo et al.
International Search Report for PCT/US98/07768, 7 pages.
International Search Report for PCT/US98/07785, 7 pages.
International Search Report, PCT/US96/07144, Sep. 20, 1996, 7 pp.
Plantronics advertisement, Santa Cruz, CA, 1994, 1 page.
Jabra advertisement, San Diego, CA, 1994, 1 page.
Fujitsu advertisement, Reader Service No. 14, 1 page.
Hello Direct advertisement, 1 page.

Affiliated with

Also associated with

Rating

Time-multiplexed short-range magnetic communications does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Time-multiplexed short-range magnetic communications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time-multiplexed short-range magnetic communications will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1465932