Wireless bar code scanning system

• US 5,825,009 A
• Filed: 03/11/1997
• Issued: 10/20/1998
• Est. Priority Date: 03/11/1997
• Status: Expired due to Fees

• Current Assignee: PTO (Safe Fleet Holdings LLC)
• Original Assignee: PTO (Safe Fleet Holdings LLC)
• Inventors: Schmid, William M., Behrens, James R.
• Primary Examiner(s): Wong, Don
• Application Number:
  US08/815,116
• Time in Patent Office: 588 Days
• Field of Search: 235/375, 235/472, 235/462, 364/705.03, 364/705.05, 364/709.12
• US Class Current: 235/462.01
• CPC Class Codes: G06F 3/002 Specific input/output arrangements not covered by G06F3/01 - G06F3/16 other optical apparatus G02B27/00
• CPC Class Codes: G06F 3/023 Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
• CPC Class Codes: G06K 7/10 by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation

Abstract

A wireless scanning system for a bar code scanner and a personal computer. The bar code scanner sends raw bar code data via a wireless connection to the personal computer. The personal computer decodes the raw bar code data, and sends the digitized version of the raw bar code data to a keyboard buffer, in order to simulate data from the keyboard at the personal computer based on the raw bar code data.

Claims

1. A bar code scanning and decoding apparatus, comprising:

a bar code scanner, which includes,

scanning means for scanning a bar code symbol; and

transmitting means for transmitting a signal corresponding to the scanned bar code symbol via over-the-air transmission; and

a computer located separate from the bar code scanner, the computer including,

a keyboard;

a keyboard buffer connected to the keyboard for holding digital representations of data from the keyboard;

receiving means for receiving the signal sent from the bar code scanner; and

means for placing a digital representation of data from the keyboard in the keyboard buffer in accordance with the received signal.

2. The apparatus according to claim 1, wherein the computer includes,

an expansion slot for receiving expansion boards;

and

a receiver expansion board coupled to the expansion slot and operative as the receiving means.

3. The apparatus according to claim 1, wherein the computer includes:

a housing for holding internal components of the computer; and

an antenna connected to a surface of the housing, the antenna being further coupled to a decoding means via a connection made in an inner, enclosed area of the housing,

wherein the antenna is operative as the receiving means.

4. The apparatus according to claim 1, wherein the computer comprises a personal computer.

5. The apparatus according to claim 1, wherein the computer further comprises:

decoding means for decoding the received signal and for obtaining a digital representation of the received signal; and

conversion means for converting the digital representation of the received signal into the digital representation of the data from the keyboard.

6. The apparatus according to claim 1, wherein the bar code scanner further comprises:

decoding means for decoding the scanned bar code symbol and for obtaining a digital representation of the scanned bar code symbol,

wherein the transmitting means receives the digital representation of the scanned bar code symbol and outputs the signal as a modulated version of the digital representation of the scanned bar code symbol.

7. A bar code scanning and decoding apparatus, comprising:

a bar code scanner, which includes,

a scanner configured to scan a bar code symbol;

a first receiver configured to receive a signal from the scanned bar code symbol; and

a transmitter connected to the first receiver and configured to transmit the signal via over-the-air transmission; and

a computer located separate from the bar code scanner, the computer including,

a keyboard;

a keyboard buffer connected to the keyboard for holding digital representations of data from the keyboard;

a second receiver configured to receive the signal sent from the bar code scanner;

a decoder connected to the second receiver and the keyboard buffer and configured to decode the received signal and to store a digital representation of the received signal as a result of the decoding into the keyboard buffer,

wherein the digital representation of the received signal from the decoder is output to the keyboard buffer in order to simulate data from the keyboard representative of the scanned bar code symbol.

8. The apparatus according to claim 7, wherein the computer includes,

an expansion slot for receiving expansion boards;

and

a receiver expansion board coupled to the expansion slot and operative as the second receiver.

9. The apparatus according to claim 7, wherein the computer includes:

a housing for holding internal components of the computer; and

an antenna disposed on a surface of the housing, the antenna being further coupled to the decoder via a connection made in an inner, enclosed area of the housing,

wherein the antenna is operative as the second receiver.

10. The apparatus according to claim 7, wherein the computer comprises a personal computer.

11. A bar code scanning and decoding apparatus, comprising:

a remotely-located bar code scanner, which includes,

scanning means for scanning a bar code symbol;

first receiving means for receiving a signal from the scanned bar code symbol; and

transmitting means for transmitting the signal via over-the-air transmission; and

a centrally-located computer, wherein the centrally-located computer includes,

an external housing;

a keyboard connected to the external housing and associated with a keyboard buffer, the keyboard buffer holding digital representations of data from the keyboard;

second receiving means, within the external housing, for receiving the signal sent from the bar code scanner;

decoding means, within the external housing, for decoding the received signal and for obtaining a digital representation of the received signal return as a result of the decoding; and

transferring means, within the external housing, for transferring the digital representation of the received signal from the decoding means to the keyboard buffer in order to simulate data from the keyboard representative of the scanned bar code symbol.

12. The apparatus according to claim 11, wherein the computer includes,

an expansion slot located within the external housing;

and

a receiver expansion board coupled to the expansion slot and operative as the second receiving means.

13. The apparatus according to claim 11, wherein the computer includes:

an antenna disposed on an outer surface of the housing, the antenna being further coupled to the decoder via a connection made in an inner, enclosed area of the housing,

wherein the antenna is operative as the second receiving means.

14. The apparatus according to claim 11, wherein the computer comprises a personal computer.

15. A method of decoding a bar code, comprising the steps of:

a) scanning the bar code;

b) transmitting, from a first location, a signal corresponding to the scanned bar code via over-the-air transmission;

c) receiving, at a second location separate from the first location, the signal sent via the over-the-air transmission;

d) decoding, at the second location, the signal sent via the over-the-air transmission into digital representations of data from the keyboard; and

e) storing, in a keyboard buffer at the second location, the digital representations of data from the keyboard.