This invention relates generally to a point of sale terminal that contains a signature capture pad.
Transaction terminals are in use today at the point of sale in large and small retail stores, restaurants, and the like. Most of the terminals have a card reading capability for acquiring both debit and credit card data. Typically, the card is drawn through a slot in the terminal and the card related data is applied to a microprocessor which identifies the card owner, processes the necessary data to complete the transaction and generates a sale slip. As part of the transaction, the card user is asked to sign his or her name upon a signature capture pad and the signature is electronically recorded as part of the transaction.
The capture pad employed in many point of sale transaction terminals typically includes a glass substrate that is separated from a deformable polyester cover by relatively small non-conductive spheres. The opposing surfaces of the substrate and the cover sheet are coated with a conductive material. The coated surfaces are, in turn, connected to lead lines that surround the capture pad. The lead lines are connected to an x-y register that is arranged to record the signature data and forward the data to a microprocessor. The customer writes his or her signature on the pad using a plastic stylus or a similar instrument having a point which is capable of forcing the conductive surface on the cover sheet at the contact point against the conductive coating upon the substrate thus electronically recording the signature.
Many customers using this type of terminal ignore the plastic stylus and elect instead to write on the capture pad with a writing instrument such as a ballpoint pen or a pencil, which causes rapid deterioration of the pad and eventual destruction of the pad. The pad will also deteriorate in time even when properly used, as the relatively thin cover sheet becomes worn.
Gannon et al. in U.S. Pat. No. 6,572,012 describes a cover assembly for the capture pad of a transaction terminal which protects the capture pad from dirt, dust, and the like.
The Gannon terminal includes a cover for protecting the signature capture pad which includes a first lower panel that contains an open frame that surrounds the capture pad and covers the electrical lead lines that run along the periphery of the capture pad. The lower panel is bonded by adhesive to the terminal housing. The cover further includes an upper cover panel that is placed over the lower cover panel and includes a frame and a protective plastic window that overlies the capture pad. The upper cover panel is removably secured to the lower panel by an adhesive so that the upper panel can be easily replaced if it becomes worn or otherwise damaged.
The Gannon terminal works very well in practice, however, the adhesive holding the upper panel in place can weaken in time and prematurely release the panel. Also, customers tend to tamper with the terminal and find ways to break the adhesive bond between the cover panels. In addition, replacing the upper cover panel can be relatively costly in that not only must the protective film be replaced, but also its frame with the adhesive bonding agent.
It is therefore an object of the present invention to improve point of sale transaction terminals that contain signature capture pads.
A further object of the invention is to better protect the signature capture pad of a transaction terminal.
A still further object of the present invention is to reduce the cost of replacing the protective cover of a point of sale transaction terminal.
Another object of the present invention is to render a point of sale transaction terminal tamperproof.
These and other objects of the present invention are attained by means of a point of sale transaction terminal that includes a signature capture pad having lead lines about its periphery and which is mounted in an upper surface of the terminal housing. A screen protector is mounted upon the upper surface to overlay the capture pad. In one embodiment, registration means are provided, such as registration pins, for registering the screen protector over the capture pad. A bezel closes over the periphery of the screen protector. A latch mounted within the terminal housing beneath the bezel engages the bezel when it is closed over the screen protector to secure the bezel to the terminal housing. The latch is released through a small access port in the terminal housing which provides restricted access to permit a pin or wire to be inserted into engagement with the latch to move the latch to a release position.
For a better understanding of these and other objects of the present invention, reference will be made to the following detailed description of the invention which is to be read in association with the accompanying drawings, wherein:
Turning now to the drawings,
The housing includes an upper flat surface 15 that serves as a writing platen. A signature capture pad 19 is recessed into the platen so that the top surface of the pad is in coplanar alignment with the top surface of the platen and provides a convenient platform upon which a customer can sign his or her name. As set out in the above-mentioned Gannon et al. patent, the disclosure of which is included herein by reference, the capture pad is designed to electrically record the customer's signature and send the recorded data via suitable electrical leads to a register within the housing for processing. The electrical leads extend around the peripheral margin of the capture pad. The leads are at least partially exposed and thus subject to being damaged if the lines are penetrated by a writing stylus or the like. Exposing the lead lines to moisture can also be harmful.
As noted above, replaceable covers are known in the prior art for protecting the capture pad from undue wear and to prevent customers from writing directly upon the signature pad with a pen or pencil. These protective covers typically are mounted within a rigid frame, the frame in turn secured to the terminal housing by means of a weak adhesive that permits the frame from being stripped from the housing. To replace a worn protective screen, the residue adhesive on the housing must be removed and the entire screen assembly replaced.
As illustrated in
The capture pad and the protective screen are both contained within a shallow recess 30 in the top of the housing along with the platen 15. A bezel 40 is also contained within the recess. The bezel has an outer frame 42 that compliments the outer geometry of the recess and a rectangular-shaped central opening 43. A pair of tab-like hinges 45—45 are integrally joined to the top edge 46 of the bezel and are arranged to be slidably received within a pair of slotted openings 47—47 located in the top wall 48 of the recess 30. With the hinges in place, the frame of the bezel will close snuggly into the recess 30 with the opening 43 being centered upon the signature capture pad (see
With further reference to
A hole 60 is passed through the front wall 61 of the terminal housing and the bracket 63 that supports the latch within the housing. The hole points directly at the rod portion of the latch with the axis of the hole passing through the rod. The hole has a diameter that makes it practically unnoticeable to the naked eye but large enough so that the straightened end of a paper clip or the like can be passed through the hole into contact with the elongated member portion of the latch. Accordingly, as illustrated in
While this invention has been particularly shown and described with reference to the preferred embodiment in the drawings, it will be understood by one skilled in the art that various changes in its details may be effected therein without departing from the teachings of the invention.
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