Registers – Coded record sensors – Particular sensor structure
Patent
1993-01-11
1994-07-19
Hajec, Donald
Registers
Coded record sensors
Particular sensor structure
235463, 235375, G06K 710
Patent
active
053311418
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a bar code reader and a game set using the same. More particularly, the present invention relates to an improved bar code reader capable of removing various types of noise included in bar code data and a game set using the same.
BACKGROUND ART
For example, U.S. Pat. No. 4,729,564 (hereinafter referred to as a first prior art document), Japanese Patent Laid Open Gazette No. 11183/1990 (hereinafter referred to as a second prior art document), and Japanese Patent Laid-Open Gazette No. 23592/1990 (hereinafter referred to as a third prior art document) disclose a game set playing various games on the basis of bar code data read from a bar code card. However, the first to third prior art documents utilize the bar code data read from the bar code card by a bar code reader without any modification and fail to disclose a technique for removing various types of noise included in the bar code data. Therefore, erroneous data is liable to be inputted to the game set by the bar code data including the noise. Particularly in the field of the game set, lower cost is required. Accordingly, it is impossible to use, as the bar code reader, a high-cost and high-precision one. Consequently, it is highly possible that noise is included in the bar code data read by such a bar code reader.
On the other hand, such a game set that a battle game can be played using a bar code card has been commercially available and an application for the game set has been filed in recent years (for example, a trade name "Bar Code Battler" made by Epoque Co., Ltd.; Japanese Patent Laid-Open Gazette No. 193, 074/1981). This conventional bar code game set (hereinafter referred to as a fourth prior art document) is so constructed that a battle game can be played using a bar code card produced by a player himself or herself of the game. Specifically, the player uses a bar code card attached or uses an original bar code card to which a bar code attached to a commercially available commodity is affixed and causes the game set to read the bar code card to play the battle game. In the bar code card produced by the player himself or herself, however, the bar code is generally inferior in state in many cases. Accordingly, it is very highly possible that noise is included in the bar code data read by the bar code reader. For example, when a bar code cut from a package of a commodity is bonded to a card and used, dust is liable to adhere to the bar code by adhesives squeezed from the adhesive surface. In this case, the dust adhering to the bar code is liable to be erroneously recognized as a part of a black or white bar included in the bar code. In addition, when the bar code attached to the commodity is damaged from the beginning, a read error occurs in a damaged portion. Furthermore, when the bar code attached to the commodity is copied by a copying machine and used, the shape of each of the bars in the bar code is deformed by distortion of an optical system in the copying machine. Particularly when copying of the bar code is repeated many times, the degree of deformation of each of the bars is increased. In this case, the width of each of the bars is not normally read, thereby causing a read error. However, the above described game set in the forth prior art document utilizes the bar code data read from the bar code card without any modification and fails to disclose a technique related to signal processing for removing noise included in the bar code data, similarly to the above described first to third prior art documents. Therefore, the above described game set in the fourth prior art document has the disadvantage in that a read error frequently occurs, whereby the interest in the game is lost.
Therefore, an object of the present invention is to provide an improved bar code reader capable of reliably detecting various types of noise included in bar code data and improving the reading precision of a bar code even if a relatively simple and low-cost optical reader is used.
Another object of the present inv
REFERENCES:
patent: 4112422 (1978-09-01), Mayer et al.
patent: 4363489 (1982-12-01), Chodak et al.
patent: 4373719 (1983-02-01), Nelson et al.
patent: 4373726 (1983-02-01), Churchill et al.
patent: 4410181 (1983-10-01), Lapp et al.
patent: 4434460 (1984-02-01), Drakenborn et al.
patent: 4494197 (1985-01-01), Troy et al.
patent: 4534562 (1985-08-01), Cuff et al.
patent: 4573954 (1986-03-01), Berger et al.
patent: 4651995 (1987-03-01), Henkel
patent: 4662637 (1987-05-01), Pfeiffer
patent: 4667089 (1987-05-01), Shirakabe et al.
patent: 4669729 (1987-06-01), Solitt et al.
patent: 4681548 (1987-07-01), Lemelson
patent: 4689742 (1987-08-01), Troy et al.
patent: 4695058 (1987-09-01), Carter, III et al.
patent: 4729564 (1988-03-01), Kuna et al.
patent: 4746789 (1988-05-01), Gieles et al.
patent: 4840382 (1989-06-01), Rubin
patent: 4863173 (1989-09-01), Chen
patent: 4958837 (1990-09-01), Russell
patent: 5026058 (1991-06-01), Bromley
patent: 5245167 (1993-09-01), Takenaka
APE, Inc.
Hajec Donald
Young Adrian
LandOfFree
Bar code reader and game set using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bar code reader and game set using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bar code reader and game set using the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-521424