Registers – Coded record sensors – Particular sensor structure
Patent
1992-01-07
1995-04-25
Popek, Joseph A.
Registers
Coded record sensors
Particular sensor structure
361683, 361729, 361731, 361814, 3647081, 36470910, 455 90, 455348, G06K 710
Patent
active
054101417
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention generally relates to data collection systems wherein a hand-held unit is operated from battery power and functions to collect and process data by a sequence of automated and manual operations. A typical automated process is the non-contact scanning of bar code data by means of a cyclically deflected laser beam or with the use of an image photosensor of the CCD type. Once a valid bar code reading has been obtained, a keyboard may be manually operated to indicate an associated quantity. The user may then manually initiate a further operation, for example, the on-line transmission of the data to a remote host computer e.g. via a radio frequency communications link.
The presently known data capture devices which include a user interface such as a keyboard and display, and a non-contact automatic reader function have tended to be highly specialized, bulky and expensive. In a prior art device having the desired functions, it may be necessary to completely invert the device after a bar code reading, in order to view the display, and/or to actuate the keyboard.
Devices which essentially add a keyboard and display to an existing scanner design may be particularly awkward to use, for example because the keyboard and display are applied at the forward end of the scanner where they are not conveniently accessible and where manual forces applied to the keyboard are tedious to counteract with the supporting handle which is much closer to the user's body.
It would be desirable to have a basic data capture terminal which is light weight and compact, and which could be readily converted for on-line wireless communications and bar code scanning as needed. Such a versatile data capture system would be particularly suitable for small scale operations where low cost is a major objective, and versatility of the terminal unit is especially advantageous. Furthermore, in order to realize the benefits of mass production, it is desirable from the manufacturer's standpoint if a basic computerized terminal configuration can be readily adapted to the needs of diverse end users by the selective addition of low cost modules.
SUMMARY OF THE INVENTION
In accordance with an important aspect of the present invention, a light weight low cost basic terminal can be adapted for on-line RF communication with a host computer and selectively accommodate high throughput bar code scanners of the instant type such as CCD bar code scanners and deflected laser beam scanners, while essentially avoiding the deficiencies in the prior art devices.
It is highly desirable that the data capture system be compatible with existing peripheral equipment e.g. for downloading data to the terminal and where applicable recharging the terminal batteries. In a particularly advantageous embodiment a basic terminal unit has one end with external contacts compatible with existing communicating and recharging docking apparatus and an opposite end adapted to selectively receive various modular adaptor end caps. Besides a compatibility end cap providing standard overall dimensions and a standard electrical connector arrangement compatible with an existing printer docking receptacle, the terminal may be coupled with an automatic bar code scanner or other desired peripheral device. The basic terminal may receive an RF module adapting the terminal for on-line RF communications.
In accordance with preferred features, the RF module can be removed and replaced with another similar module without requiring any tuning adjustments. Further such module interchange can most preferably be carried out in the field by the end user. Because of such capability the useful life of the basic terminal may be extended without service interruptions for return to the factory or service center, and the terminal is readily upgraded and adapted to new operating requirements. For example different operating frequencies can be selected simply by replacing the RF module. This is achieved by stocking only the desired modules which are of low cost in compariso
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HP-41CV Owner's Handbook and Programming Guide, Apr. 1982 (see pp. 256-257).
Boatwright Darrell L.
Cargin Keith K.
Danielson Arvin D.
Durbin Dennis A.
Geers Robert G.
Gable R. Lew
Glembocki Christopher R.
Norand
Popek Joseph A.
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