Boots – shoes – and leggings
Patent
1980-03-19
1981-12-29
Malzahn, David H.
Boots, shoes, and leggings
364705, 364408, G06F 1530
Patent
active
043085881
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCES
U.S. Pat. No. 4,075,702 issued in February, 1978 refers to a calculator used in combination with a checkbook. These calculators serve multiple purposes such as division, multiplication, addition, square roots, subtraction, etc. and in no way differ from other calculators for other purposes. In contrast, the electronic checkbook is a dedicated microprocessor which will maintain a checking account balance and store that balance on a day to day basis, even when the machine is not in use, unless there is a failure of the physical components.
DESCRIPTION OF THE PRIOR ART AND SUMMARY OF THE INVENTION
This invention relates to an electronic checkbook for providing a means to facilitate the computation, maintenance, and storage of a checking account balance. Manually adding deposits and subtracting check amounts from a checking account balance is a time consuming nuisance, particularly when shopping or paying bills. The possibility exists that many individuals will write out several checks without balancing their checkbook. This results in a possible unknown immediate balance of the checking account of the user of a regular checkbook. A device has been developed in the past which involves the incorporation of a calculator along with a checkbook in a folder. These calculators are multipurpose devices, i.e. the registers are shared with multiplying, dividing, etc. (See U.S. Pat. No. 4,075,702, February, 1978). Inherently these devices are composed of potentially unnecessary complexity of function for maintaining checking account balances. They do not support the sequence of a checking account. They are merely useful tools. The electronic checkbook is dedicated to the problem of checking account balances and maintains the continuity of the process.
The present invention relates to an electronic checkbook which can be made inexpensively and produced in a very compact portable package. It is designed specifically for the computation and storage of checking account balances and will both store the balance of the account even when the machine is not in use as well as enforce portions of the computational sequence. The embodiment of the device is of such a nature that when the unit is not in use, the contents of memory are absolutely preserved, short of some failure of the physical components. In the initial embodiment, the components used require that the battery power does not fail or be interrupted in order to maintain the integrity of the stored contents of memory. Other components that are presently available are non-volatile in their memory characteristics. Examples are magnetic ferrite core, electronically alterable integrated circuits, and various film technologies, to list a few. The concept of storing the required memory as a normal portion of the inactive operating cycle of a device of this type, is not predicated on any of these specified techniques of memory and they are mentioned only to illustrate less optimum choices which are presently available, although any other choice might be favorable at another time. Other objects and purposes of the invention are clarified by the following detailed description of the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 illustrates a perspective view of the interior of the folder containing the electronic checkbook.
FIG. 2 illustrates a front view of the character display.
FIG. 3 illustrates the dedicated microprocessing unit.
FIG. 4 is a switch interconnection diagram relating to FIG. 3.
FIG. 5 illustrates a schematic of the electronic circuitry of the electronic checkbook.
DETAILED DESCRIPTION OF THE DRAWINGS
Reference is now made to FIG. 1 which shows a perspective view of the interior of the folder 16 containing the electronic checkbook. The lower portion of the folder 16 contains standard size checks 18 bound together with checking account deposit tickets 18. On the right side of the upper portion of FIG. 1 are check stubs 20 possessing numbers corresponding to the standard checks located in the lower portion of the folder and function
REFERENCES:
patent: 3920979 (1975-11-01), Kilby et al.
patent: 4075702 (1978-02-01), Davis
"Mostek to Sell 2-Function Unit for Checkbooks" Electronics, Mar. 20, 1975 p. 26.
"Compact, Diary, Checkbook all Count" Electronics, Apr. 3, 1975, pp. 40-41.
LandOfFree
Electronic checkbook does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electronic checkbook, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic checkbook will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1021034