KR20010112876A - Compact Disc of Credit Card Type - Google Patents

Abstract

A transmitter system comprises an oscillator and having an adjustable monolithic capacitor circuit used for frequency stabilization. The oscillator signal is modulated and transmitted. A data generating chip is coupled to the transmitter. The data generating chip is used for adjusting and controlling the transmitter oscillator frequency signal. The adjustable capacitor circuit is located internal to the data generating chip and is coupled to a ground pin and one of a plurality of function pins on the data generating chip. The adjustable capacitor circuit is used for adjusting and setting the centerpoint of the transmitter oscillator frequency signal.

Description

Compact Disc of Credit Card Type

The present invention relates to a card-type compact disk, and in particular, to a card-like compact disk having a high quality, capable of producing a variety of designs according to the use, and less damage in production or handling.

Card-type compact discs (hereinafter referred to as "card-type CDs") are discs designed to be used by mounting 120 mm and 80 mm round CDs commonly found around us into conventional computer CD drives that can be used simultaneously. It is about 84 to 100 mm (here described as 80 mm CD), about 56 to 85 mm in height, and a CD similar in size to a credit card, business card, or identification card.

In recent years, such card type CD is mainly used for simple programs, product catalogs, company brochures, membership cards, electronic wallets, software demo programs and installation programs, music videos, event guides, business card substitutes, etc. It is widely used for commercial or public use by companies and individuals.

Therefore, in addition to storing data on card-type CDs, companies and individuals are trying to realize the surface with more and more diverse and effective images and characters by utilizing the area of card-type CDs with limited sizes more fully.

In order to do this, the card-type CD product itself must conform to various designs and have a quality that can be expressed in a refined manner without modification, and at least there should be consideration for such use. If a user is using a card-type CD provided by a company or an individual for the purpose of promoting the company or personally, the image may not be easily recognized, or in particular, if it is easily damaged, the effect of the promotion may be reduced. This is because the image of the individual rather falls down.

On the other hand, as is well known, conventional conventional circular CDs are used with a diameter of 120 mm and 80 mm, and the CD drive of a computer uses the disc tray in order to use both 120 mm CD and 80 mm CD in one CD drive. The circular seat corresponding to each CD is provided in the form of concentric circles. The circular seat for 120mm CD is formed with a monolayer structure lower than the bottom of the disc tray so that the outer periphery of the CD is inserted, and the 80mm CD for circular seat is formed with a monolayer structure lower than the bottom of the circular seat for 120mm CD. The outer circumferential edge of the corresponding CD is inserted so that the CD does not leave the correct position in the process of sliding in or sliding out after being placed in the corresponding circular seating portion.

1 and 2 show a conventional card type CD 10.

In the conventional card type CD 10, a general 120mm circular CD 2 was manufactured and then cut into a rectangle such that the long side had a length of 85 to 87 mm. Because of this, the card-shaped CD 10 cannot be inserted into the 80 mm small circular seat formed on the disc tray of the CD-driver, but is seated on the bottom surface of the large circular seat for 120 mm. 12) The concentric annular guider 14 corresponding to the conventional 80mm CD is projected from one side surface so that the annular guider 14 is inserted into the small circular seat for the 80mm of the disc tray, and the rest of the part is formed. Has the same structure as the general circular CD 2. That is, the center hole 16 is provided in the center of the card-shaped CD 10, and the inner ring 18 protrudes from the outer side of the center hole 16, and this center hole 16 and the inner ring are formed. 18 is formed between the clamping zones 20 without data recording, so that the clamping zones 20 are mounted on the spindle motor of the CD-driver.

And, as is well known, on the opposite side of the substrate 12 on which the annular guider 14 and the inner ring 18 are formed, as in the case of a normal CD, minute tracks are formed along the spiral track outside the clamping zone 20. Data is recorded as a pit 22 made of unevenness. An aluminum reflecting layer 24 for reflecting laser light is formed on the surface of the pit 22 by vapor deposition, and the aluminum reflecting layer 24 thereon. The protective layer 26 for protecting the structure is coated. In FIG. 1, the aluminum reflective layer 24 and the protective layer 26 are formed from the outside of the transparent plastic substrate 12 to the boundary line X near the inner ring 18.

In the example of the card-shaped CD 10 shown in FIG. 1, between the clamping zone 20 and the annular guider 14 is set as a data recording area M in which data can be recorded. In order to explain the contents or make the most of the information for promotion, a promotional phrases book which prints promotional texts or images on a part of the data recording area M other than the area in which the data is stored, that is, the hatched portion on the drawing ( T) can be set.

In the conventional card type CD 10, as described above, the annular guider 14 is formed continuously, and as shown in FIG. The single-layered part 14a and the second single-layered part 14b form a single-layered structure, and since the fluidity of the resin is reduced during molding, the quality is not uniform, and there is a closed end that is poor in appearance after deformation due to severe deformation. In addition, since the corners of the first and second tomography portions 14a and 14b forming a right angle are sharp, and are manufactured by cutting a conventional 120 mm circular CD as described above, the outer portion of the cut first and second tomography portions of the CD is cut. This sharpening is a problem that damages the dignity of the CD by damaging the CD when the card-type CDs are stacked and aligned in the production process or in the distribution process.

In addition, as described above, when a company or an individual prints promotional text for a company or individual within a free area of a card type CD, the area of the data area M is increased, that is, the data recording area M. Among the portions except the portion where the data is substantially recorded, that is, the area of the phrase recording portion (T) is to be increased to maximize the use for this purpose.

For example, as in Korean Patent Application No. 2000-0030743 filed by the present applicants (name of the invention: a method of recording an eye of an optical disc, filing date: June 5, 2000), When printed using a screen technique (also called holography) that produces CI, Brand Identity, and other promotional phrases, while producing a vivid saturation of the rainbow by the refraction of When the laser light is irradiated, that is, the opposite side of the aluminum reflective layer 24 and the protective layer 26, that is, through the transparent plastic substrate 12, the annular guider 14 of the card-type CD 10 is visible. Has a single-layer structure formed by the first tomography portion 14a and the second tomography portion 14b while maintaining a right angle. When viewed through the transparent plastic substrate 12, the image is disconnected by the first tomography portion 14a. To refraction, or The line is drawn to show how the shape of the middle. For this reason, when printing promotional text in the past, only a part away from the first tomography portion 14a could be used, so that the space could not be utilized to the maximum.

Since the card-shaped CD is manufactured by cutting a conventional 120 mm circular CD as described above, the aluminum reflective layer 24 and the protective layer 26 are exposed as it is to the cut outer side, as shown in FIG. 2. The problem of peeling of the coating occurs during distribution and use, and as the coating is peeled off, the aluminum layer is released into fine particles, penetrating into the respiratory system of the human body, causing disease and causing environmental pollution. .

In addition, the back surface of the card-type CD, that is, the surface on which the aluminum reflective layer 24 and the protective layer 26 are coated, is subjected to label treatment in various manners as in the conventional method. In this case, the aluminum reflective layer 24 is formed from the outer side of the card-shaped CD 10 to the inner ring 18 so that light does not pass from the opposite side, but the center hole 16 is formed from the inner ring 18. ) Is not deposited between the layers, and the transparent plastic substrate 12 is maintained as it is. As a result, light passes from the opposite side, resulting in a color difference after labeling. That is, the color of the label is maintained from the outside of the substrate 12 to the inner ring 18 when the user looks at it, but the color of the product is deteriorated from the inner ring 18 to the center hole 16 so that the image of the product is damaged. There is a possibility of becoming.

The present invention has been made to solve all the problems of the prior art as described above, the object of the present invention can improve the fluidity of the resin when molding the annular guider of the card-type CD, production process, distribution process and use process In addition, the aluminum reflective layer is not exposed directly to the outside, reducing the desorption of the reflective layer and the human and environmental damage caused by the label. By constructing the structure with no difference in color, it is to provide a card-type compact disc which has high quality and high promotional utilization and improves the quality of the product.

1 is a plan view showing a typical typical card type CD

FIG. 2 is an enlarged cross-sectional view of the II of FIG. 1; FIG.

3 is a plan view of a card type CD according to the present invention.

4 is an enlarged cross-sectional view of II-II of FIG.

5 is an enlarged view as viewed from the direction “A” of FIG. 3;

6 is a plan view showing another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10a: card type compact disk 12: transparent plastic substrate

16: center hole 18: inner ring

20: clamping zone 22: feet

24: aluminum reflective layer 26: protective layer

50: circular guider 50a, 50b, 50c: arc guider element

In order to realize this, according to the object of the present invention, the card-shaped compact disc of the present invention has a center hole formed in the center of a rectangular transparent plastic substrate, an inner ring formed outside the center hole, and data is recorded on one surface of the substrate. An aluminum reflective layer and a protective layer are formed on the recorded surface, and on the opposite side of the substrate on which the data is recorded, a card-shaped compact disc having an annular guider projected on both sides from the surface thereof to be placed in a CD driver such as a computer. The annular guides of are each divided into at least two small arc guider elements without continuation, and are arranged at equal intervals, and two arc guider elements of the partitioned arc guide elements are respectively disposed at the outer ends of the substrate. Guider These arc guider elements have a cross section of 20 ° to 5 ° from the bottom of the circumference to the outside. It is composed of an inclined upward angle at 0 °.

In addition, the aluminum reflecting layer is formed from a minimum 17mm to 20mm diameter of the clamping zone portion to the outside, and is further formed from a portion at least 0.5mm away from the outermost portion of the substrate.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

The same parts as in Figs. 1 and 2 will be described with the same reference numerals.

3 to 5 show an embodiment of the present invention, the card-shaped compact CD 10a of the present invention is a center hole (center hole) in the center of the rectangular transparent plastic substrate 12, like a conventional card-type CD 16, the inner ring 18 is formed outside the center hole 16. Then, data is recorded as a pit 22 on one surface of the substrate 12, and an aluminum reflective layer 24 and a protective layer 26 are formed on the data-containing surface.

Then, on the opposite side of the substrate 12 in which data is recorded, an annular guider 50 is formed to protrude from the surface thereof to be placed in a CD-driver such as a computer. The annular guider 50 is a conventional annular type according to the present invention. Unlike a guider, at least two arc guider elements, i.e., in the illustrated example, are divided into three arc guider elements 50a, 50b, 50c, such that the arc guider elements 50a, 50b, 50c are equidistant (or conformal). ) And two arcuate guider elements 50a, 50c of the partitioned arc guider elements 50a, 50b, 50c are disposed at opposite ends of the substrate 12, respectively. If the arc guide element 50 is two on one side, the two are arranged at the outer end of the substrate 12 and are in a flat state without the element in the middle portion.

4, the cross section of the arc guider elements 50a, 50b, 50c (see Fig. 4) is preferably at an angle of 30 ° to 50 ° from the lower end of the circumference to the outer end. It consists of a structure inclined upward at an angle of 45 °. Each corner and corner portion generated in the inclined form is preferably rounded as shown.

According to the present invention having the above configuration, the conventional continuous annular guider is divided into two or more small arc guider elements 50a, 50b, and 50c, while the cross sections of the arc guider elements 50a, 50b, and 50c are simultaneously Since a smoothly inclined structure is taken out of the monolayer structure, the flowability of the resin during molding is improved, so that uniform quality is obtained, thereby reducing deformation after molding. This advantage can be maximized especially when the card-shaped CD 10a is molded in an injection mold.

Furthermore, since the annular guider 50 is smoothly formed without the sharpness as described above, even when contacted with other card-type CDs or other items during handling, such as a production process or a distribution process, they are not damaged.

In addition, according to the cross-sectional shape of the annular guider 50, that is, the arc guider elements 50a, 50b, 50c, as shown in FIGS. 3 and 4, a part of the data recording portion M of the card-shaped CD 10a is recorded. After setting to negative (T), when printing promotional images such as CI, BI, etc. in the stationery recording unit (T), the cross-section of the annular guider has a single layer structure, and thus the printed image is cut off or refracted. Although the shape was drawn in the middle, the annular guider 50 according to the present invention is inclined upwardly at an angle of 20 ° to 50 °, so that there is no disconnection of the image from the point where the inclination starts, and the line is This phenomenon can be eliminated, and the refraction is small so that it can be seen without any difficulty, so that the limited area can be utilized as the promotional image insertion area.

3 and 5, in the card type CD 10a according to the present invention, at the outer end of the substrate 12, the outer end of the annular guider 50, i.e., the arc guider elements 50a, 50b, 50c. The substrate 12 is configured to be inclined upwardly at an angle of 30 ° to 50 ° from the outer surface of the substrate 12, preferably at an angle of 45 °.

According to this structure, by inclining the end portion in addition to the smooth cross-sectional shape of the annular guider 50 described above, the flowability of the resin during molding is more improved, there is no sharpness in any part of the annular guider 50, A product of stable quality can be obtained and there is no damage during handling.

3 and 4, in the card type CD 10a of the present invention, the aluminum reflecting layer 24 deposited on the pit 22 surface is concentric with the central hole 16 of the substrate 12, and thus the central hole thereof. Up to a portion adjacent to (16), preferably at least 17 mm to 20 mm in diameter, preferably up to 19 mm. Considering that the diameter of the center hole 16 is usually 15 mm and the diameter of the inner ring 18 is about 34 mm, the aluminum reflective layer 24 is formed in most of the clamping zones 20 that have been maintained in the state of the transparent plastic substrate. This is to be formed.

As a result, since the passage of light is blocked by the aluminum reflective layer 24, when the label is placed on the card type CD 10a, the color becomes uniform so that the viewer can feel a stable quality and the aluminum reflective layer ( 24) When viewed from the opposite side, that is, the transparent plastic part, the color labeled in the clamping zone 20 was projected lightly in the prior art, but according to the present invention, the data recording area M and the aluminum reflective layer 24 in a uniform state are shown. This makes the product more stable.

In addition, in the card type CD 10a of the present invention, the aluminum reflective layer 24 has a structure formed from the edge of the substrate 12, that is, at least 0.5 mm away from the outermost portion of the substrate 12. In the related art, when a 120 mm circular CD is cut into a card type CD, the aluminum reflecting layer 24 is exposed to the outermost side, and the deposited aluminum is detached. However, according to the present invention, since the aluminum reflective layer 24 is formed from a predetermined point from the outermost part, and the protective layer 26 is coated thereon, there is no fear that the aluminum reflective layer 24 is exposed.

6 is a view illustrating a modification of the annular guider 50 as related to another embodiment of the present invention.

As shown, in the present embodiment, the outer ends of the arc guider elements 50a and 50c disposed at the outer ends of the substrate 12 among the arc guider elements 50a, 50b and 50c are in contact with the outer edge of the substrate 12. Without this, the substrate 12 has a structure formed by entering at least 0.5 mm or more inward from the outermost part of the substrate 12. The arc guider elements 50a and 50c are also described in the above-described embodiment, that is, as shown in Fig. 5, and the outer end thereof is preferably at an angle of 30 ° to 50 ° from the outer surface of the substrate 12 to the inner upper end. Is preferably made of a structure inclined upward at an angle of 45 °. Since the annular guider 50 according to another embodiment of the present invention is formed from a point away from the outside of the substrate 12 by a predetermined distance, the end edge thereof can be prevented from easily hitting other articles.

As described above, the card-shaped compact disc according to the present invention has a structure in which the annular guider 50 is divided into two or more small arc guider elements, and the cross-sectional shape thereof is smoothly continuous, thereby improving the fluidity of the resin during molding. There is no damage in the production or distribution process, and the area for printing promotional text can be increased.

In addition, the aluminum reflective layer 24 is formed to the clamping zone 20 adjacent to the central hole 16 of the substrate 12, and further has a structure formed from a point in which a predetermined distance from the outermost of the substrate 12, After labeling, the color does not appear to be deteriorated and is uniform, and there is no exposure of the aluminum reflective layer 24 at the outermost surface of the substrate 12, thereby preventing the deposition of deposited aluminum.

As described above, according to the card type compact disk according to the present invention, it is possible to obtain a uniform and excellent quality of the product, and to print promotional text and the like utilizing the limited area to the maximum, by giving a sense of stability to the label processing user It can provide high quality card type compact disc.

Claims (5)

A center hole 16 is formed in the center of the rectangular transparent plastic substrate 12, an inner ring 18 is formed outside the center hole 16, and data is recorded on one surface of the substrate 12. An aluminum reflective layer 24 and a protective layer 26 are formed on the data-bearing surface, and an annular guider 50 for being placed in a CD-driver, such as a computer, is placed on the opposite side of the substrate 12 on which the data is recorded. In the card-like compact disc protruding on both sides, The annular guiders 50 on both sides are each divided into at least two small arc guider elements without being contiguous, and the partitioned arc guiders are arranged at equal intervals, and the two arc guiders of the partitioned arc guide guide elements are arranged. Each of the elements is arranged at the outer ends of the substrate (12), the card-shaped compact disc, characterized in that the cross section of the arc guider elements are inclined upward at an angle of 20 ° to 50 ° from the lower end of the circumference to the outer top. The method according to claim 1, Card-type compact disc, characterized in that the outer end portion of the arc guider element disposed on the outer end of the substrate 12 enters at least 0.5mm inward without contact with the outer surface of the substrate (12). The method according to claim 1 or 2, Card-type compact disc, characterized in that the outer end of the arc guider element disposed on the outer end of the substrate 12 is inclined upward at an angle of 30 ° to 50 ° from the outer surface of the substrate 12 to the inner upper end . The method according to claim 1, The aluminum reflective layer (24) is concentric with the central hole (16) of the substrate (12) card-shaped compact disc, characterized in that formed from a minimum of 17mm to 20mm diameter of the portion of the clamping zone (20). The method according to claim 1 or 4, Card-shaped compact disc, characterized in that the aluminum reflecting layer 24 of the outer layer portion of the substrate 12 is formed from a portion at least 0.5mm away from the outermost portion of the substrate (12).