Personal paging receiver with swivel clip and distributed antenna
First Claim
1. A personal paging device of the kind having radio receiving means within a casing intended to be carried by a person, comprising a casing having a length dimension which is substantially greater than either of its thickness dimension and its width dimension, means for attaching said casing to another body, means pivotally mounting said attaching means to said casing at a location intermediate the ends of said length dimension, said mounting means providing limited freedom to rotate said attaching means relative to said casing through only approximately one-quarter circle, so that with said attaching means attached to an article of clothing worn by a person said casing can be disposed with said length dimension horizontal when said attaching means is at one limit of said freedom, and vertical when said attaching means is at a second limit of said freedom.
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Abstract
A personal paging device is housed in a case which has one dimension (length) longer than its width or thickness, and a clip is affixed to a side on a swivel between the ends of the length dimension, which allows the device to be worn on the person in a vertical or a horizontal posture. A radio receiving antenna is carried on a flexible dielectric sheet within the casing, and radio components are enclosed within that sheet. A pair of orthogonally-related antenna loops can be provided on the dielectric sheet. The swivel clip can be arranged to cooperate with these or other antennas in a circular-polarization antenna system, such that in one orientation one or the other of the antennas will be detuned.
61 Citations
20 Claims
- 1. A personal paging device of the kind having radio receiving means within a casing intended to be carried by a person, comprising a casing having a length dimension which is substantially greater than either of its thickness dimension and its width dimension, means for attaching said casing to another body, means pivotally mounting said attaching means to said casing at a location intermediate the ends of said length dimension, said mounting means providing limited freedom to rotate said attaching means relative to said casing through only approximately one-quarter circle, so that with said attaching means attached to an article of clothing worn by a person said casing can be disposed with said length dimension horizontal when said attaching means is at one limit of said freedom, and vertical when said attaching means is at a second limit of said freedom.
- 14. In a radio apparatus, a case forming the housing for said apparatus, a flexible sheet of dielectric liner for said case, for surrounding radio apparatus in said housing, and radio antenna means comprising one or more flexible conductors supported on said liner, at least one of said conductors forming a set of two serially-connected loops disposed in responsive planes that are substantially parallel to each other when said sheet surrounds said apparatus, said loops being interconnected such that when they are so disposed in said planes currents induced in said loops by coupling with an electromagnetic field will flow in the same direction in said conductor.
Specification