Wristwatch-type selective calling receiver

Details Wristwatch-type selective calling receiver Wristwatch-type selective calling receiver

1994-07-18

1996-03-12

Faile, Andrew I.

Telecommunications

Receiver or analog modulated signal frequency converter

With wave collector

455344, 455348, 455351, 343702, 343718, 343744, 343868, H01Q 700

Patent

active

054993989

ABSTRACT:
A selective calling receiver comprises two separate bands having an antenna circuit for tuning incorporated therein. The first band has a first antenna and tuning capacitors incorporated therein and stoppers formed and arrayed on the outer surface thereof. Predetermined points are provided to the first antenna, providing different effective antenna lengths, respectively. The respective stoppers are provided with electrodes which are connected to the predetermined points of the first antenna through the tuning capacitors, respectively. The second band has a second antenna and a hook. The hook can be engaged with a selected one of the stoppers of the first band depending on the user's wrist thickness. The hook comprises a conductor electrically connected to the second antenna. When engaged with a selected one of the stoppers, the hook brings into electrical contact with the corresponding electrode to form the antenna circuit.

REFERENCES:
patent: 2418865 (1949-09-01), Penfold
patent: 4586827 (1986-05-01), Hirsch et al.
patent: 4922260 (1990-05-01), Gaskill et al.
patent: 5128686 (1992-07-01), Tan et al.
patent: 5132697 (1992-07-01), Tan
patent: 5280645 (1994-07-01), Nguyen et al.

Affiliated with

Also associated with

Rating

Wristwatch-type selective calling receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wristwatch-type selective calling receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wristwatch-type selective calling receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2107979