Paging device with structure for removing static electricity

Claim 2

A paging device for mounting to a user's body and for at least one of receiving and transmitting signals and including a battery power source having positive and negative terminals comprising: pager circuit means for controlling and operating at least one of the received signals and the transmitted signals; and a pager body, having at least a portion formed of a conductive material, said pager body housing the pager circuit means and engaging the user's body when mounted, said pager body being operatively coupled to said pager circuit means, the conductive portion of the pager body being operatively coupled to one of the positive and negative terminals of said battery power source so that the pager circuit means is set to an AC reference voltage at least when the conductive portion is mounted to and engaged against the user's body.

Claim 3

The paging device of claim 1, wherein the pager body includes a top case and a back lid.

Claim 4

The paging device of claim 2, wherein the portion of the pager body formed of conductive material is at least one of the top case and the back lid.

Claim 5

The paging device of claim 2, wherein the portion formed of conductive material is the back lid.

Claim 6

The paging device of claim 1, wherein the pager circuit means includes a ground electrode, said conductive portion of the pager body being operatively coupled to the ground electrode.

Claim 7

The paging device of claim 3, wherein the pager circuit means includes a ground electrode, said conductive portion of the pager body being operatively coupled to the ground electrode.

Claim 8

The paging device of claim 5, wherein the conductive portion of the pager body is directly connected to the ground electrode.

Claim 9

The paging device of claim 5, wherein the conductive portion of the pager body is indirectly connected to the ground electrode.

Claim 10

The paging device of claim 1, and including band means coupled to the pager body for mounting the paging device to the user's body, the band means including at least two band portions each having a first end and a second end, the first ends of the band portions being coupled to the pager body.

Claim 11

The paging device of claim 9, wherein the band portions each include antenna portion means coupled to the pager circuit means for at least one of receiving and transmitting signals and built into the respective band portions.

Claim 12

The paging device of claim 10, wherein the antenna portion means are formed from a conductive material.

Claim 13

The paging device of claim 11, further including fastening means for mechanically coupling the second ends of the band portions and electronically coupling the antenna portion means.

Claim 14

The paging device of claim 12, wherein the pager body is mounted on the user's body by the band means so that the built in antenna means is electrically coupled to form a loop antenna.

Claim 15

The paging device of claim 13, including a setting means for setting the conduction portion of the pager body to an AC reference voltage of the pager circuit means and including a balanced circuit section coupled in parallel with the ends of said antenna portion means coupled to the pager circuit means and having an essentially neutral point, said neutral point of said balanced circuit section being operatively coupled to said AC reference voltage of said pager circuit means.

Claim 16

The paging device of claim 14, wherein the pager body includes a top case and a back lid.

Claim 17

The paging device of claim 15, wherein the portion of the pager body formed of conductive material is at least one of the top case and the back lid.

Claim 18

The paging device of claim 14, wherein the fastening means is electrically coupled to the essentially neutral point of the balanced circuit section for the discharge of static electricity.

Claim 19

The paging device of claim 16, wherein the fastening means is electrically coupled to the essentially neutral point of the balanced circuit section for the discharge of static electricity.

Claim 20

The paging device of claim 18, wherein the setting means operatively couples the essentially neutral point of the balanced circuit section to the same one of the positive and negative terminals of the battery power source as the conductive portion of the pager body is connected.

Claim 21

The paging device of claim 19, wherein the balanced circuit section includes a pair of varactor diodes connected at their respective cathodes to define said essentially neutral point and connected in parallel with said antenna portion means.

Claim 22

The paging device of claim 20, and including a pair of capacitors one connected between each of the junctions between the pager circuit means and the respective ends of the antenna portion means and the balanced circuit section.

Claim 23

The paging device of claim 21, and including tuning frequency control voltage means for applying a tuning frequency control voltage to one of the junctions between the respective ends of the antenna portion means and the balanced circuit section.

Claim 24

The paging device of claim 22, wherein said tuning frequency control voltage is applied to both junctions between said balanced circuit section and the ends of said antenna portion means.

Claim 25

The paging device of claim 20, and including frequency control voltage means coupled to the essentially neutral point of the balanced circuit section and including capacitor means coupled intermediate said essentially neutral point and said one of said positive and negative terminals of the battery power source.

Claim 26

The paging device of claim 22, and including spark gap means coupled between both junctions of said balanced circuit section and said antenna portion means and between each of said junctions and said at least one of the positive and negative terminals of the battery power source.

Claim 27

The paging device of claim 19, wherein the band means is adapted to be fitted around a wrist of the user with the conductive portion of the pager body in contact with said wrist.

Claim 28

The paging device of claim 9, wherein the band means is adapted to be fitted around a wrist of the user with the conductive portion of the pager body in contact with said wrist.

Claim 29

The paging device of claim 1, further including band means adapted to be fitted around a wrist of the user with the conductive portion of the pager body in contact with said wrist.

Claim 30

A paging device for mounting to the user's body and for at least one of receiving and transmitting signals comprising: pager circuit means for controlling and operating on at least one of the received signals and the signals to be transmitted; a pager body housing the pager circuit means; band means including two band portions having first ends and second ends, the respective first ends of the band portions being coupled to the pager body for mounting to a user; antenna means for at least one of receiving and transmitting the signals and including antenna portion means, one being built into each band portion; fastening means for mechanically coupling the second ends of the band portions and electrically coupling the two antenna portion means so that a loop antenna is formed when the pager body is mounted by the fastened band means; circuit element means connected in parallel to the loop antenna, the circuit element means having a capacitance to resonate with the loop antenna to form a tuning circuit; a battery power source operatively coupled to said pager circuit means and having positive and negative electrodes; and said circuit element means being operatively coupled to one of the positive or negative electrodes of the battery power source; whereby a discharge path for removing static electricity is formed between said fastening means and either said positive electrode or said negative electrode through said circuit element means.

Claim 31

A paging device for mounting to the user's body and for at least one of receiving and transmitting signals comprising: pager circuit means for controlling and operating on at least one of the received signals and the signals to be transmitted; a pager body housing the pager circuit means; band means including two band portions having first ends and second ends, the respective first ends of the band portions being coupled to the pager body for mounting to a user; antenna means for at least one of receiving and transmitting the signals and including antenna portion means, one being built into each band portion; fastening means for mechanically coupling the second ends of the band portions and electrically coupling the two antenna portion means so that a loop antenna is formed when the pager body is mounted by the fastened band means; circuit element means connected in parallel to the loop antenna, the circuit element means having a capacitance to resonate with the loop antenna to form a tuning circuit; a battery power source operatively coupled to said pager circuit means and having positive and negative electrodes; and said circuit element means being operatively coupled to one of the positive or negative electrodes of the battery power source; whereby a discharge path for removing static electricity is formed between said fastening means and either said positive electrode or said negative electrode through said circuit element means.

Claim 32

The paging device of claim 29, wherein the circuit element means is coupled to a positive electrode of said battery power source.

Claim 33

The paging device of claim 29, wherein the circuit element means is coupled to a negative electrode of said battery power source.

Claim 34

The paging device of claim 29, wherein the circuit element means includes a pair of varactor diodes connected at their respective cathodes and connected in parallel with said loop antenna, whereby said circuit element means has a capacitance to form an antenna tuning circuit.

Claim 35

The paging device of claim 32, wherein said pair of varactor diodes includes an essentially neutral point formed between the pair of varactor diodes and operatively coupled to the one of the electrodes.

Claim 36

The paging device of claim 33, and including a pair of capacitors one connected between the pager circuit means and each of the junctions between the end of the antenna portion means at the pager body and the pair of varactor diodes.

Claim 37

The paging device of claim 34, and including tuning frequency control voltage means for applying a tuning frequency control voltage to one of the junctions between the respective ends of the antenna portion means and the pair of varactor diodes.

Claim 38

The paging device of claim 35, wherein said tuning frequency control voltage is applied to both junctions between said pair of varactor diodes and the ends of said antenna portion means.

Claim 39

The paging device of claim 34, and including frequency control voltage means coupled to the essentially neutral point of the pair of varactor diodes and including capacitor means coupled intermediate said essentially neutral point and said one of said positive and negative terminals of the battery power source.

Claim 40

The paging device of claim 33, and including tuning frequency control voltage means for applying a tuning frequency control voltage to one of the junctions between the respective ends of the antenna portion means and the pair of varactor diodes.

Claim 41

The paging device of claim 38, wherein said tuning frequency control voltage is applied to both junctions of said pair of varactor diodes and the ends of said antenna portion means.

Claim 42

The paging device of claim 38, and including frequency control voltage means coupled to the essentially neutral point of the pair of varactor diodes and including capacitor means coupled intermediate to said essentially neutral point and said one of said positive and negative terminals of the battery power source.

Claim 43

The paging device of claim 33, and including spark gap means coupled between both junctions of said pair of varactor diodes and said antenna portion means, and between each of said junctions and said at least one of the positive and negative terminals of the battery power source.

Claim 44

The paging device of claim 33, wherein the band means is adapted to be fitted around a wrist of the user with the conductive portion of the pager body in contact with said wrist.

Claim 45

The paging device of claim 29, wherein the band means is adapted to be fitted around a wrist of the user with the conductive portion of the pager body in contact with said wrist.

Claim 46

The paging device of claim 29, wherein the pager body includes a top case and a back lid.

Claim 47

The paging device of claim 35, wherein at least one of the top case and the back lid is formed with at least a portion formed of a conductive material and in engagement with the user's body when mounted thereon.

Claim 48

The paging device of claim 45, said conductive material is operatively coupled to one of the positive and negative electrodes of the battery power source.

Claim 49

The paging device of claim 46, wherein a discharge path for removing static electricity is formed from the fastening means to the portion formed of conductive material through the circuit element means.

Claim 50

The paging device of claim 47, wherein the circuit element means includes a pair of varactor diodes serially connected with their respective anodes connected together to define an essentially neutral point, the pair of varactor diodes being coupled in parallel with the loop antenna.

Claim 51

The paging device of claim 48, wherein the discharge path for removing static electricity is formed from the conductive material to the fastening means through the varactor diodes.

Claim 52

The paging device of claim 49, wherein the band means is adapted to be fitted around a wrist of the user with the conductive portion of the pager body in contact with said wrist.

Claim 53

A paging device for mounting to the user's body and for at least one of receiving and transmitting signals comprising: pager circuit means for controlling and operating on at least one the received signals and the signals to be transmitted; a pager body housing the control means; band means including two band portions having first ends and second ends, the respective first ends of the band portions being coupled to the pager body for mounting to a user; antenna means having a first section and a second section built into the band means for at least one of receiving and transmitting the signals, the antenna sections being formed of a conductive material carried by the band portions; fastening means for mechanically connecting the second ends of the band portions and electrically coupling the first section and the second section of the antenna means so that a loop antenna is formed when the pager body is mounted on the user; and discharge path means including a spark gap electrically coupled to the loop antenna for removing static electricity.

Claim 54

A paging device for mounting to the user's body and for at least one of receiving and transmitting signals comprising: pager circuit means for controlling and operating on at least one the received signals and the signals to be transmitted; a pager body housing the control means; band means including two band portions having first ends and second ends, the respective first ends of the band portions being coupled to the pager body for mounting to a user; antenna means having a first section and a second section built into the band means for at least one of receiving and transmitting the signals, the antenna sections being formed of a conductive material carried by the band portions; fastening means for mechanically connecting the second ends of the band portions and electrically coupling the first section and the second section of the antenna means so that a loop antenna is formed when the pager body is mounted on the user; and discharge path means including a spark gap electrically coupled to the loop antenna for removing static electricity.

Claim 55

The paging device of claim 51, wherein the spark gap is formed between the ends of the first and second antenna sections at the pager body.

Claim 56

The paging device of claim 51, further including power supply means for supplying power to the pager circuit means positioned in the body and including positive and negative electrodes.

Claim 57

The paging device of claim 53, wherein the spark gap is formed between the first section and second section of the antenna means and one of the positive and negative electrodes of the power supply means.

Claim 58

The paging device of claim 51, wherein the pager body is formed at least in part of a conductive material in contact with the user's body when mounted.

Claim 59

The paging device of claim 55, wherein the spark gap is formed between the portion of the pager body formed of conductive material and each of the first sections and second sections of the antenna means.

Claim 60

The paging device of claim 56, wherein the pager body includes a top case and a back lid.

Claim 61

The paging device of claim 57, wherein the portion formed of conductive material is at least one of the top case and the back lid.

Claim 62

The paging device of claim 58, wherein the conductive material is positioned to contact the wrist of the user, the band means being a wristband.

Claim 63

The paging device of claim 51, wherein the pager circuit means includes a plurality of multi-layered circuit boards to form a multi-layered structure, the spark gap being formed between at least two circuit boards stacked in spaced relation one upon the other.

Claim 64

The paging device of claim 60, wherein the circuit boards have conductive pattern means thereon, the spark gap being defined by at least two projecting point portions facing one another, each being coupled to the conductive pattern means of its circuit board.

Claim 65

The paging device of claim 55, wherein the pager circuit means includes at least one circuit board having a conductive circuit layer on at least one surface thereof.

Claim 66

The paging device of claim 62, further including a through hole bored through said circuit board, said conductive circuit layer being on both sides of said circuit board and defining an electrode pattern including tip portions in registration pointed towards the through hole to form a spark gap between registered tip portion on opposed sides of the circuit board through the through hole.

Claim 67

The paging device of claim 62, wherein said conductive circuit layer on one side of the board defines facing tip portions defining a spark gap.

Claim 68

The paging device of claim 53, and including a first spark gap formed between the ends of the antenna portions at the pager body and second and third spark gaps respectively formed between the end of each of the antenna sections at the pager body and one of the positive and negative electrodes of the power supply means.

Claim 69

The paging device of claim 65, and including circuit element means connected in parallel to the loop antenna, the circuit element means having a capacitance to resonate with the loop antenna to form a tuning circuit and further defining an essentially neutral point operatively coupled to one of said positive and negative electrodes.

Claim 70

The paging device of claim 66, wherein the pager body includes at least a conductive portion which is positioned to contact the body of the user when mounted, said conductive portion being operatively coupled to said one of said positive and negative electrodes.

Claim 71

The paging device of claim 62, and including an antenna terminal operatively coupled to each of said antenna sections and to the conductive circuit layer on said circuit board and including means for mechanically supporting said antenna terminal on said circuit board, each said antenna terminal including a first portion for coupling to its associated antenna portion, a second portion for electrically and mechanical coupling to said circuit board and a third portion facing an edge of said circuit board, said circuit board including a conductive layer on said edge facing said third portion of said antenna terminal, a spark gap being defined between said conductive layer on said circuit board edge and said third portion of said antenna terminal.

Claim 72

A paging device for mounting to the user's body and for at least one of receiving and transmitting signals comprising: pager circuit means for controlling and operating on at least one of the received signals and the signals to be transmitted, and having a first connection side and a second connection side; a pager body housing the pager circuit means, at least a portion of the pager body being formed of a conductive material and being in contact with the user's body when mounted; a band including two band portions each having a first end and a second end, the first ends of the band portions being coupled to the pager body for mounting to the user; antenna means for at least one of receiving and transmitting the signals and formed from first and second antenna sections each respectively built into one of the two band portions; fastening means for mechanically connecting the second ends of the band portions and electrically coupling the antenna sections so that a loop antenna is formed when the pager body is mounted on the user; a pair of spark gaps connected in parallel to the loop antenna and in parallel to the pager circuit means on the first connection side thereof, an essentially neutral point representing the ground potential being defined between the two spark gaps; and a dedicated wiring pattern electrically coupling the neutral point and the conductive portion of the pager body.

Claim 73

A paging device for mounting to the user's body and for at least one of receiving and transmitting signals comprising: pager circuit means for controlling and operating on at least one of the received signals and the signals to be transmitted, and having a first connection side and a second connection side; a pager body housing the pager circuit means, at least a portion of the pager body being formed of a conductive material and being in contact with the user's body when mounted; a band including two band portions each having a first end and a second end, the first ends of the band portions being coupled to the pager body for mounting to the user; antenna means for at least one of receiving and transmitting the signals and formed from first and second antenna sections each respectively built into one of the two band portions; fastening means for mechanically connecting the second ends of the band portions and electrically coupling the antenna sections so that a loop antenna is formed when the pager body is mounted on the user; a pair of spark gaps connected in parallel to the loop antenna and in parallel to the pager circuit means on the first connection side thereof, an essentially neutral point representing the ground potential being defined between the two spark gaps; and a dedicated wiring pattern electrically coupling the neutral point and the conductive portion of the pager body.

Claim 74

The paging device of claim 69, wherein the neutral point is connected to a back lid of the body.

Claim 75

A paging device for mounting to the user's body and for at least one of receiving and transmitting signals comprising: pager circuit means for controlling and operating on at least one of the received signals and the signals to be transmitted, and having a first connection side and a second connection side; a pager body housing the pager circuit means, at least a portion of the pager body being formed of a conductive material and being in contact with the user's body when mounted; a band including two band portions each having a first end and a second end, the first ends of the band portions being coupled to the pager body for mounting to the user; antenna means for at least one of receiving and transmitting the signals and formed from first and second antenna sections each respectively built into one of the two band portions; fastening means for mechanically connecting the second ends of the band portions and electrically coupling the antenna sections so that a loop antenna is formed when the pager body is mounted on the user; a pair of spark gaps connected in parallel to the loop antenna and in parallel to the pager circuit means on the first connection side thereof, an essentially neutral point representing the ground potential being defined between the two spark gaps; battery power source operatively coupled to said pager circuit means and having positive and negative electrodes; circuit means operatively coupling the conductive portion of the pager body and at least one of said positive and negative electrodes; a dedicated wiring pattern electrically coupling the neutral point to the circuit means coupling the conductive portion of the pager body and one of the positive and negative electrodes; and decoupling means electrically coupled to the second connection side of the pager circuit means and the positive and negative electrodes of the battery power source for isolating the pager and the conductive portion of the pager body.

Claim 76

A paging device for mounting to the user's body and for at least one of receiving and transmitting signals comprising: pager circuit means for controlling and operating on at least one of the received signals and the signals to be transmitted, and having a first connection side and a second connection side; a pager body housing the pager circuit means, at least a portion of the pager body being formed of a conductive material and being in contact with the user's body when mounted; a band including two band portions each having a first end and a second end, the first ends of the band portions being coupled to the pager body for mounting to the user; antenna means for at least one of receiving and transmitting the signals and formed from first and second antenna sections each respectively built into one of the two band portions; fastening means for mechanically connecting the second ends of the band portions and electrically coupling the antenna sections so that a loop antenna is formed when the pager body is mounted on the user; a pair of spark gaps connected in parallel to the loop antenna and in parallel to the pager circuit means on the first connection side thereof, an essentially neutral point representing the ground potential being defined between the two spark gaps; battery power source operatively coupled to said pager circuit means and having positive and negative electrodes; circuit means operatively coupling the conductive portion of the pager body and at least one of said positive and negative electrodes; a dedicated wiring pattern electrically coupling the neutral point to the circuit means coupling the conductive portion of the pager body and one of the positive and negative electrodes; and decoupling means electrically coupled to the second connection side of the pager circuit means and the positive and negative electrodes of the battery power source for isolating the pager and the conductive portion of the pager body.

Claim 77

The paging device of claim 71, wherein the back lid is conductive and connects to the negative electrode.

Claim 78

The paging device of claim 71, wherein said decoupling means is a filter.