Patent US4093865A successfully refreshed from Google Patents.
US4093865A
Expired / Lapsed
US
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Code symbol scanner using a double X bar pattern
Assignee: National Semiconductor Corp
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Filing: 1977-04-29
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Granted: 1978-06-06
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Expires: 1997-04-29
Abstract
Abstract A system for scanning a code symbol consisting of a combination of spaced parallel bars affixed to an object for providing coded information related to the object. A flat panel defines a scanning region adjacent the panel for receiving objects having the code symbol. Light transmissive areas in the panel surface define a "double X bar" pattern consisting of a predetermined configuration of five bars, such as shown in the Drawing. A laser beam is sequentially scanned at an acute angle to the panel surface in planes extending through the five bars into the defined scanning region at prescribed angles in relation to a first direction. When a received object containing said code symbol is moved within the defined scanning region from the first direction with the code symbol facing the panel or facing within almost ninety degrees of a second direction, opposite to the first direction, light scanned into the defined scanning region is reflected by the code symbol to a detection system, and the detection system provides an electrical signal indicative of the coded information.
Inventors
- 👤 Franklyn George Nickl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:04
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10861; G06K7/10871; G06K2207/00; G06K2207/1012
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
490 words
A system for scanning a code symbol consisting of a combination of spaced parallel bars affixed to an object for providing coded information related to said object, and for providing an electrical signal indicative of said coded information in response to scanning said code symbol, comprising a housing for defining a scanning region adjacent the housing for receiving objects having said code symbol; means for providing a light beam; means for scanning said light beam in a predetermined scanning pattern within said defined scanning region; means for detecting light having at least a predetermined intensity and for providing an electrical signal in response to detection of said light; and means for directing light from said scanned light beam that is reflected from a said code symbol on a said received object to the detecting means; characterized by the scanning means including an optical system for scanning said light beam at an acute angle to a reference plane defining a boundary of said defined scanning region and in a predetermined scanning pattern that includes a first bar in said reference plane extending normal to a first direction; second and third bars in said reference plane disposed along lines that intersect with each other and disposed symmetrically in relation to the first bar; and fourth and fifth bars in said reference plane disposed along lines that intersect with each other and disposed symmetrically in relation to the first bar; wherein the second and third bars intersect with each other and/or the fourth and fifth bars intersect with each other; and wherein the second bar intersects with the fifth bar and the third bar intersects with the fourth bar; and said pattern further includes a first plane extending through the first bar into said defined scanning region at an acute angle to said reference plane in said first direction, a second plane extending through the second bar into said defined scanning region at an acute angle to the reference plane at an acute angle to said first direction, a third plane extending through the third bar into said defined scanning region at an acute angle to said reference plane and at an acute angle to said first direction, a fourth plane extending through the fourth bar into said defined scanning region normal to said reference plane and at an acute angle to said first direction, and a fifth plane extending through the fifth bar into said defined scanning region normal to said reference plane and at an acute angle to said first direction, whereby when a said received object containing a said code symbol is moved within said defined scanning region from said first direction with said code symbol facing said reference plane or facing opposite said first direction, light scanned into said defined scanning region by the scanning means is reflected by said code symbol to the detecting means, and the detecting means provides an electrical signal indicative of said coded information.
Claim 2
Independent Claim
490 words
A system for scanning a code symbol consisting of a combination of spaced parallel bars affixed to an object for providing coded information related to said object, and for providing an electrical signal indicative of said coded information in response to scanning said code symbol, comprising a housing for defining a scanning region adjacent the housing for receiving objects having said code symbol; means for providing a light beam; means for scanning said light beam in a predetermined scanning pattern within said defined scanning region; means for detecting light having at least a predetermined intensity and for providing an electrical signal in response to detection of said light; and means for directing light from said scanned light beam that is reflected from a said code symbol on a said received object to the detecting means; characterized by the scanning means including an optical system for scanning said light beam at an acute angle to a reference plane defining a boundary of said defined scanning region and in a predetermined scanning pattern that includes a first bar in said reference plane extending normal to a first direction; second and third bars in said reference plane disposed along lines that intersect with each other and disposed symmetrically in relation to the first bar; and fourth and fifth bars in said reference plane disposed along lines that intersect with each other and disposed symmetrically in relation to the first bar; wherein the second and third bars intersect with each other and/or the fourth and fifth bars intersect with each other; and wherein the second bar intersects with the fifth bar and the third bar intersects with the fourth bar; and said pattern further includes a first plane extending through the first bar into said defined scanning region at an acute angle to said reference plane in said first direction, a second plane extending through the second bar into said defined scanning region at an acute angle to the reference plane at an acute angle to said first direction, a third plane extending through the third bar into said defined scanning region at an acute angle to said reference plane and at an acute angle to said first direction, a fourth plane extending through the fourth bar into said defined scanning region normal to said reference plane and at an acute angle to said first direction, and a fifth plane extending through the fifth bar into said defined scanning region normal to said reference plane and at an acute angle to said first direction, whereby when a said received object containing a said code symbol is moved within said defined scanning region from said first direction with said code symbol facing said reference plane or facing opposite said first direction, light scanned into said defined scanning region by the scanning means is reflected by said code symbol to the detecting means, and the detecting means provides an electrical signal indicative of said coded information.
Claim 3
Dependent Claim
28 words
A system according to claim 1, wherein said acute angle to said first direction at which the second, third, fourth and fifth planes respectively extend is approximately 45°.
Claim 4
Dependent Claim
26 words
A system according to claim 1, wherein said acute angle to said reference plane at which the first plane extends is 45° plus or minum 15°.
Claim 5
Dependent Claim
28 words
A system according to claim 1, wherein said acute angle to said reference plane at which the second and third planes extend is 45° plus or minus 15°.
Claim 6
Dependent Claim
33 words
A system according to claim 1, wherein said acute angle to said reference plane at which said light beam is scanned in the fourth and fifth planes is 45° plus or minus 15°.
Claim 7
Dependent Claim
76 words
A system according to claim 1, wherein said acute angle to said reference plane at which the first plane extends is 45° plus or minus 15°; wherein said acute angle to said reference plane at which the second and third planes extend is 45° plus or minus 15°; and wherein said acute angle to said reference plane at which said light beam is scanned in the fourth and fifth planes is 45° plus or minus 15°.
Claim 8
Dependent Claim
28 words
A system according to claim 6, wherein said acute angle to said first direction at which the second, third, fourth and fifth planes respectively extend is approximately 45°.
Claim 9
Dependent Claim
50 words
A system according to claim 7, wherein said point of intersection between the second and third bars is in a second direction opposite said first direction from the first bar; and/or said point of intersection between the fourth and fifth bars is in said first direction from the first bar.
Claim 10
Dependent Claim
19 words
A system according to claim 8, wherein the first bar intersects with the second, third, fourth and fifth bars.
Claim 11
Dependent Claim
93 words
A system according to claim 9, wherein the ends of the second, third fourth and fifth bars in said first direction from the first bar are approximately equidistant in said first direction from a straight line extending along and beyond the length of the first bar and the ends of the fourth and fifth bars in said second direction from the first bar are approximately twice the distance in the second direction from said straight line as the ends of the second and third bars in said second direction from said straight line.
Claim 12
Dependent Claim
106 words
A system according to claim 10, wherein the first, second, and third bars are at least 6 inches (15 centimeters) long, the fourth and fifth bars are at least 8 inches (20 centimeters) long, the distance between the intersection of the second and fifth bars and the intersection of the third and fourth bars is approximately 2 inches (5 centimeters); and the distance by which the second and third bars extend past their point of intersection is at least 11/2 inches (33/4 centimeters) and/or the distance by which the fourth and fifth bars extend beyond their point of intersection is at least 11/2 inches (33/4 centimeters).
Claim 13
Dependent Claim
73 words
A system according to claim 1, wherein said acute angle to said first direction at which the second, third, fourth and fifth planes respectively extend is approximately 45°; and wherein said point of intersection between the second and third bars is in a second direction opposite said first direction from the first bar; and/or said point of intersection between the fourth and fifth bars is in said first direction from the first bar.
Claim 14
Dependent Claim
19 words
A system according to claim 12, wherein the first bar intersects with the second, third, fourth and fifth bars.
Claim 15
Dependent Claim
93 words
A system according to claim 13, wherein the ends of the second, third, fourth and fifth bars in said first direction from the first bar are approximately equidistant in said first direction from a straight line extending along and beyond the length of the first bar and the ends of the fourth and fifth bars in said second direction from the first bar are approximately twice the distance in the second direction from said straight line as the ends of the second and third bars in said second direction from said straight line.
Claim 16
Dependent Claim
106 words
A system according to claim 14, wherein the first, second and third bars are at least 6 inches (15 centimeters) long, the fourth and fifth bars are at least 8 inches (20 centimeters) long, the distance between the intersection of the second and fifth bars and the intersection of the third and fourth bars is approximately 2 inches (5 centimeters); and the distance by which the second and third bars extend past their point of intersection is at least 11/2 inches (33/4 centimeters) and/or the distance by which the fourth and fifth bars extend beyond their point of intersection is at least 11/2 inches (33/4 centimeters).
Claim 17
Independent Claim
499 words
A system for scanning a code symbol consisting of a combination of spaced parallel bars affixed to an object for providing coded information related to said object, and for providing an electrical signal indicative of said coded information in response to scanning said code symbol, comprising a panel for defining a scanning region adjacent the panel for receiving objects having said code symbol; means for providing a light beam; means for scanning said light beam in a predetermined pattern throughout said defined scanning region; means for detecting light having at least a predetermined intensity and for providing an electrical signal in response to detection of said light; and means for directing light from said scanned light beam that is reflected from a said code symbol on a said received object to said detecting means; characterized by the panel having a surface containing light transmissive areas defining a pattern including a first bar extending normal to a first direction; second and third bars intersecting with each other and with the first bar and disposed symmetrically in relation to the first bar with the point of intersection with each other being in a second direction opposite the first direction from the first bar; and fourth and fifth bars intersecting with each other and with the first bar and disposed symmetrically in relation to the first bar with the point of intersection with each other being in the first direction from the first bar; wherein the second bar intersects with the fifth bar and the third bar intersects with the fourth bar; and by the scanning means including an optical system for scanning the light beam at an acute angle to the panel surface and in a said predetermined scanning pattern that includes a first plane extending through the first bar into said defined scanning region at an acute angle to the panel surface in said first direction, a second plane extending through the second bar into said defined scanning region at an acute angle to the panel surface and at an acute angle to said first direction, a third plane extending through the third bar into said defined scanning region at an acute angle to the panel surface and at an acute angle to said first direction, a fourth plane extending through the fourth bar into said defined scanning region normal to the panel surface and at an acute angle to said first direction, and a fifth plane extending through the fifth bar into said defined scanning region normal to the panel surface and at an acute angle to said first direction; whereby when a said received object containing a said code symbol is moved within said de fined scanning region from said first direction with said code symbol facing the panel or facing said second direction, light scanned into said defined scanning region by the scanning means is reflected by said code symbol to the detecting means, and the detecting means provides an electrical signal indicative of said coded information.
Claim 18
Independent Claim
499 words
A system for scanning a code symbol consisting of a combination of spaced parallel bars affixed to an object for providing coded information related to said object, and for providing an electrical signal indicative of said coded information in response to scanning said code symbol, comprising a panel for defining a scanning region adjacent the panel for receiving objects having said code symbol; means for providing a light beam; means for scanning said light beam in a predetermined pattern throughout said defined scanning region; means for detecting light having at least a predetermined intensity and for providing an electrical signal in response to detection of said light; and means for directing light from said scanned light beam that is reflected from a said code symbol on a said received object to said detecting means; characterized by the panel having a surface containing light transmissive areas defining a pattern including a first bar extending normal to a first direction; second and third bars intersecting with each other and with the first bar and disposed symmetrically in relation to the first bar with the point of intersection with each other being in a second direction opposite the first direction from the first bar; and fourth and fifth bars intersecting with each other and with the first bar and disposed symmetrically in relation to the first bar with the point of intersection with each other being in the first direction from the first bar; wherein the second bar intersects with the fifth bar and the third bar intersects with the fourth bar; and by the scanning means including an optical system for scanning the light beam at an acute angle to the panel surface and in a said predetermined scanning pattern that includes a first plane extending through the first bar into said defined scanning region at an acute angle to the panel surface in said first direction, a second plane extending through the second bar into said defined scanning region at an acute angle to the panel surface and at an acute angle to said first direction, a third plane extending through the third bar into said defined scanning region at an acute angle to the panel surface and at an acute angle to said first direction, a fourth plane extending through the fourth bar into said defined scanning region normal to the panel surface and at an acute angle to said first direction, and a fifth plane extending through the fifth bar into said defined scanning region normal to the panel surface and at an acute angle to said first direction; whereby when a said received object containing a said code symbol is moved within said de fined scanning region from said first direction with said code symbol facing the panel or facing said second direction, light scanned into said defined scanning region by the scanning means is reflected by said code symbol to the detecting means, and the detecting means provides an electrical signal indicative of said coded information.
Claim 19
Dependent Claim
76 words
A system according to claim 16, wherein said acute angle to the panel surface at which the first plane extends is 45° plus or minus 15°; wherein said acute angle to the panel surface at which the second and third planes extend is 45° plus or minus 15°; and wherein said acute angle to the panel surface at which said light beam is scanned in the fourth and fifth planes is 45° plus or minus 15°.
Claim 20
Dependent Claim
28 words
A system according to claim 17, wherein said acute angle to said first direction at which the second, third, fourth and fifth planes respectively extend is approximately 45°.
Claim 21
Dependent Claim
93 words
A system according to claim 18, wherein the ends of the second, third, fourth and fifth bars in said first direction from the first bar are approximately equidistant in said first direction from a straight line extending along and beyond the length of the first bar and the ends of the fourth and fifth bars in said second direction from the first bar are approximately twice the distance in the second direction from said straight line as the ends of the second and third bars in said second direction from said straight line.
Claim 22
Dependent Claim
106 words
A system according to claim 19, wherein the first, second and third bars are at least 6 inches (15 centimeters) long, the fourth and fifth bars are at least 8 inches (20 centimeters) long, the distance between the intersection of the second and fifth bars and the intersection of the third and fourth bars is approximately 2 inches (5 centimeters); and the distance by which the second and third bars extend past their point of intersection is at least 11/2 inches (33/4 centimeters) and/or the distance by which the fourth and fifth bars extend beyond their point of intersection is at least 11/2 inches (33/4 centimeters).
Claim 23
Dependent Claim
28 words
A system according to claim 16, wherein said acute angle to said first direction at which the second, third, fourth and fifth planes respectively extend is approximately 45°.
Claim 24
Dependent Claim
93 words
A system according to claim 21, wherein the ends of the second, third, fourth and fifth bars in said first direction from the first bar are approximately equidistant in said first direction from a straight line extending along and beyond the length of the first bar and the ends of the fourth and fifth bars in said second direction from the first bar are approximately twice the distance in the second direction from said straight line as the ends of the second and third bars in said second direction from said straight line.
Claim 25
Dependent Claim
106 words
A system according to claim 22, wherein the first, second and third bars are at least 6 inches (15 centimeters) long, the fourth and fifth bars are at least 8 inches (20 centimeters) long, the distance between the intersection of the second and fifth bars and the intersection of the third and fourth bars is approximately 2 inches (5 centimeters); and the distance by which the second and third bars extend past their point of intersection is at least 11/2 inches (33/4 centimeters) and/or the distance by which the fourth and fifth bars extend beyond their point of intersection is at least 11/2 inches (33/4 centimeters).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |