Portable data collection device with RF transmission
First Claim
Patent Images
1. A compact, portable data collection device having radio frequency (RF) communications capabilities, said device comprising:
- a hollow substantially box-shaped housing having a front, a pair of side walls and a rear wall, as well as major top and bottom surfaces;
a keyboard for entering data and a display on the top surface;
a plurality of circuit boards within the housing stacked in parallel to the top surface, one of the boards containing radio frequency (RF) components, another board containing a CPU;
a metallic sheet lying between the RF circuit board and other boards thereby providing RF shielding therebetween;
a battery compartment in the housing between the display and bottom surface;
a battery pack in the compartment for providing power to the components on the circuit boards, said battery pack having a first end cap with a generally T-shaped projection portion defined by a leg and a cross member and a second end cap; and
an RF antenna mounted to the housing for transmitting said data to a remote source and for receiving instructions for reprogramming the CPU.
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Abstract
A portable data collection device having RF communication capabilities. This device contains circuit boards arranged in such a manner to shield the CPU board from the RF transmission components. The power source of the device is a battery pack designed to insure the correct electropolarity of the batteries when inserted.
139 Citations
10 Claims
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1. A compact, portable data collection device having radio frequency (RF) communications capabilities, said device comprising:
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a hollow substantially box-shaped housing having a front, a pair of side walls and a rear wall, as well as major top and bottom surfaces; a keyboard for entering data and a display on the top surface; a plurality of circuit boards within the housing stacked in parallel to the top surface, one of the boards containing radio frequency (RF) components, another board containing a CPU; a metallic sheet lying between the RF circuit board and other boards thereby providing RF shielding therebetween; a battery compartment in the housing between the display and bottom surface; a battery pack in the compartment for providing power to the components on the circuit boards, said battery pack having a first end cap with a generally T-shaped projection portion defined by a leg and a cross member and a second end cap; and an RF antenna mounted to the housing for transmitting said data to a remote source and for receiving instructions for reprogramming the CPU. - View Dependent Claims (2, 3, 4, 5, 6, 7, 10)
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8. A removable battery pack, said battery pack comprising:
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a first end cap with a generally T-shaped projection portion defined by a leg and a cross member, the cap including a pair of electrically polarized electrodes on opposite sides of the leg beneath the cross member; a second end cap similar to said first end cap but without said T-shaped projection portion; a plurality of electrically connected cylindrical batteries, substantially half of the longitudinal lengths of the batteries being covered by first end cap, and the opposite half of said batteries being covered by said second end cap whereby the T-shaped projection prevents said pack from being improperly inserted, thus avoiding electrical contact unless polarity is correct. - View Dependent Claims (9)
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Specification