Bar code reader having independent bar code read activation and data decoding capabilities

• US 6,405,927 B2
• Filed: 02/26/2001
• Issued: 06/18/2002
• Est. Priority Date: 10/23/1998
• Status: Expired due to Term

• Current Assignee: Symbol Technologies, LLC (Zebra Technologies Corporation)
• Original Assignee: Telxon Corporation (Zebra Technologies Corporation)
• Inventors: Sojka, Marvin L., OʼHagan, Timothy P.
• Primary Examiner(s): Pitts, Harold I.
• Application Number:
  US09/794,885
• Publication Number:
  US 20010006193A1
• Time in Patent Office: 477 Days
• Field of Search: 235/462.46, 235/472.01
• US Class Current: 235/462.46
• CPC Class Codes: G06K 7/10851 Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device basic electronic circuitry H03

Abstract

A bar code reader includes a housing and a reader module disposed in the housing for reading bar code indicia and producing an analog signal representative of the bar code indicia. A decoder is coupled to the reader module for receiving the analog signal and decoding the analog signal into decoded data representative of the bar code indicia. A central processor is coupled to the decoder and serves to receive and process the decoded data representative of the bar code indicia. The reader module and the decoder operate independently of the processor.

Claims

1. A data collection terminal, comprising:

a) a housing;

b) a keypad supported by the housing for entry of data;

c) a display supported by the housing for display of data;

d) an activatable reader supported by the housing for reading indicia having parts of different light reflectivity;

e) an activator for activating the reader to initiate reading; and

f) a processor supported by the housing for controlling operation of at least one of the keypad and the display during a control mode, and for being and remaining inactive during a power saving suspend mode during reading.

2. The terminal of claim 1, wherein the housing is configured to be held in a hand of a user,and herein the activator is a manually activatable trigger on the housing.

3. The terminal of claim 2, wherein the reader is operative for scanning bar code symbols as the indicia, and for producing analog signals corresponding to the symbols;

and a decoder for de in the analog signals into decoded signals representative of the symbols.

4. The terminal of claim 2, wherein the trigger is electrically connected to the decoder.

5. The terminal of claim 2, wherein the processor is in the suspend mode during activating of the reader.

6. The terminal of claim 2, wherein the processor is operative for controlling both a keypad controller for the keypad and a display driver for the display during the control mode.

7. The terminal of claim 6, and further comprising a radio transceiver supported by the housing for transmitting and receiving wireless signals to and from a remote host, and wherein the processor is operative for controlling operation of the transceiver during the control mode.

8. A data collection method, comprising the steps of:

a) supporting a keypad by a housing for entry of data;

b) supporting a display by the housing for display of data;

c) supporting an activatable reader by the housing for reading indicia having parts of different light reflectivity;

d) activating the reader to initiate reading;

e) controlling operation of at least one of the keypad and the display during a control mode of a processor supported by the housing; and

f) maintaining the processor inactive during a power saving suspend mode during reading.

9. The method of claim 8, and configuring the housing to be held in a hand of a user, and wherein the activating step is manually performed.

10. The method of claim 9, wherein the reader is operative for scanning bar code symbol as the indicia, and for producing analog signals corresponding to the symbols;

and the step of decoding the analog signals into decoded signals representative of the symbols.

11. The method of claim 8, wherein the processor is in the suspend mode during activating of the reader.

12. The method of claim 8, wherein the processor is operative for controlling both a keypad controller for the keypad and a display driver for the display during the control mode.

13. The method of claim 12, and further comprising the step of transmitting and receiving wireless signals with a transceiver to and from a remote host, and wherein the processor is operative for controlling operation of the transceiver during the control mode.