Wrist band for wrist-mounted radio with an uninsulated buckle
First Claim
Patent Images
1. A wrist-mounted radio receiver system for wearing on a wrist comprising:
- a case for the radio receiver;
two wrist straps extending from opposite sides of said case, each of said straps having a first end and a second end;
a metal antenna element located inside each of said straps, said antenna element being insulated from the wrist of the wearer, each of said antenna elements having a first end and a second end;
attachment means for physically attaching said first end of each of said straps to said case;
connection means for electrically connecting said first end of each of said antenna elements to the radio receiver to form a balanced, differential input to the radio receiver;
a non-insulated buckle physically and electrically connecting together the second ends of said straps and connecting together the second ends of said antenna elements so as to form a loop antenna for the radio receiver;
whereby said loop antenna has a null region located coincident with said buckle such that touching the buckle does not detune said loop antenna.
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Abstract
A wrist band for a wrist-mounted radio system is provided wherein a metallic wrist-band buckle need not be insulated. The system includes a radio receiver which includes a differential input in a wrist-band antenna with a "null point" at the location of the buckle. The wrist-band antenna is insulated from the wearer'"'"'s body at all points except at the buckle.
103 Citations
18 Claims
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1. A wrist-mounted radio receiver system for wearing on a wrist comprising:
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a case for the radio receiver; two wrist straps extending from opposite sides of said case, each of said straps having a first end and a second end; a metal antenna element located inside each of said straps, said antenna element being insulated from the wrist of the wearer, each of said antenna elements having a first end and a second end; attachment means for physically attaching said first end of each of said straps to said case; connection means for electrically connecting said first end of each of said antenna elements to the radio receiver to form a balanced, differential input to the radio receiver; a non-insulated buckle physically and electrically connecting together the second ends of said straps and connecting together the second ends of said antenna elements so as to form a loop antenna for the radio receiver; whereby said loop antenna has a null region located coincident with said buckle such that touching the buckle does not detune said loop antenna. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wrist-mounted radio receiver system for wearing on a wrist comprising:
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a case for the radio receiver; two electrically non-conductive wrist straps extending from opposite sides of said case, each of said straps having a first end, which is physically attached to said case, and a second end, each strap further having an inner surface which contacts the wrist of the wearer and an outer surface which faces away from the wrist of the wearer; two metal antenna elements substantially enclosed in said non-conductive wrist straps, one of said metal antenna elements being substantially enclosed in each of said straps, said antenna elements being insulated from the wrist of the wearer, each of said antenna elements having a first end and a second end; connection means for electrically connecting said first end of each of said antenna elements to the radio receiver to form a differential input to the radio receiver; a non-insulated buckle which includes a first clasping portion for providing physical and electrical contact with said antenna element in one of said straps and a second clasping portion for providing physical and electrical contact with the other of said straps so as to form a loop antenna for the radio receiver; whereby said loop antenna has a null region located coincident with said buckle such that touching the buckle does not detune said loop antenna. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A wrist-mounted radio receiver system for wearing on a wrist comprising:
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a case for the radio receiver; a wrist band for securing said case to a wearer'"'"'s wrist, said wrist band including; two wrist straps extending from opposite sides of said case, each of said straps having a first end and a second end and inner and outer surfaces; a metal antenna element located inside each of said straps, said antenna element being insulated from the wrist of the wearer, each of said antenna elements having a first end and a second end; and a non-insulated buckle which includes a first clasping portion for providing physical and electrical contact with said antenna element in one of said straps and a second clasping portion for providing physical and electrical contact with the other of said straps so as to form a loop antenna for the radio receiver; whereby said loop antenna has a null region located coincident with said buckle such that touching the buckle does not detune said loop antenna; attachment means for physically attaching said first end of each of said straps to said case; and connection means for electrically connecting said first end of each of said antenna elements to the radio receiver to form a differential input to the radio receiver. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification