Abstract: Provided are a method for emulating a separate contents memory unit into an optical disk, an optical disk drive using the same, and an optical disk including a security zone. In the method, when an optical disk processing command from a host is present, whether an optical disk is present in the optical disk drive is judged. When the optical disk is not present in the optical disk drive as a result of the judgment, the contents memory unit is executed as a virtual optical disk. An application stored in the contents memory unit is displayed. The optical disk drive includes an optical disk storage unit, a contents memory unit, and a controller. The optical disk storage unit stores or reproduces contents using an optical disk. The contents memory unit stores contents therein and is executed as a virtual optical disk when the optical disk is not present. The controller controls the optical disk storage unit and the contents memory unit, and controls an access to be made, subject to the contents memory unit.

Abstract: The present invention relates to a record media written with a data structure used in recognizing specific users in hardware such as a robot, etc., a method for recognizing a user by using a data structure written in the record media, and a user identification database access method for the user identification software component application programming interface (API) and an error handling method in the user identification software component API. Among the user identification elements, in particular, the present invention relates to a method for building a database of image data for the user's clothes, and a performance evaluation of a vision-based recognizer, which is means for recognizing the user's image information for the clothes.

Abstract: Provided are a method for emulating a separate contents memory unit into an optical disk, an optical disk drive using the same, and an optical disk including a security zone. In the method, when an optical disk processing command from a host is present, whether an optical disk is present in the optical disk drive is judged. When the optical disk is not present in the optical disk drive as a result of the judgment, the contents memory unit is executed as a virtual optical disk. An application stored in the contents memory unit is displayed. The optical disk drive includes an optical disk storage unit, a contents memory unit, and a controller. The optical disk storage unit stores or reproduces contents using an optical disk. The contents memory unit stores contents therein and is executed as a virtual optical disk when the optical disk is not present. The controller controls the optical disk storage unit and the contents memory unit, and controls an access to be made, subject to the contents memory unit.

Abstract: Provided are a method and a device for permanently erasing data of an optical disk in an optical disk drive including an optical disk emulation. According to the method, an erase command of data recorded on an optical disk is received and it is determined whether the optical disk is a rewritable optical disk or not. Then, an output power of a laser to be projected is raised when the optical disk is the rewritable optical disk and then the data recorded on the optical disk are erased through an output power of the laser. Furthermore, the optical disk drive includes an optical disk storage unit, a contents memory unit, a disk type determination unit, a laser power adjustor, a pick-up unit, and a controller.

Abstract: Disclosed is a method of preventing optical recording media from being fractured and apparatus thereof, which enable to prevent an optical disc of an optical disc drive from being fractured due to a crack. The method and apparatus comprise: detecting a first tracking error signal outputted from a data recording/reproducing apparatus when the optical recording media are rotated at a first speed; detecting a second tracking error signal outputted from the data recording/reproducing apparatus when the optical recording media are rotated at a second speed; determining whether or not the crack on the optical disc exists on the basis of the first tracking error signal and the second tracking error signal; and stopping an operation of the data recording/reproducing apparatus when the optical recording media have the crack.

Abstract: An optical disc drive include a turntable for mounting an optical disc, a driving unit rotating the turntable, and an optical disc heating member for heating a center portion of the optical disc. In the optical disc drive, an inner circumference temperature of the optical disc is maintained to be higher than a peripheral temperature of the optical disc by at least 50° C. According to this, a growth of a crack generated at a periphery of a hole of the optical disc is restrained thereby to effectively prevent a damage of the optical disc.

Abstract: The present invention discloses an optical disk formed according to double injection molding of forming an area of the optical disk on which a recording film is formed, namely, an outer circumferential area by using polycarbonate that is an amorphous polymer, and forming an area of the optical disk on which the recording film is not formed, namely, an inner circumferential area by using a semi-crystalline polymer having a similar elastic modulus to that of polycarbonate and having durability to a static fatigue, especially polyamide. Therefore, the optical disk is efficiently prevented from being damaged by restricting growth of cracks near its hole, obtaining excellent optical characteristics as an information recording medium.

Abstract: The present invention relates to a record media written with a data structure used in recognizing specific users in hardware such as a robot, etc., a method for recognizing a user by using a data structure written in the record media, and a user identification database access method for the user identification software component application programming interface (API) and an error handling method in the user identification software component API. Among the user identification elements, in particular, the present invention relates to a method for building a database of image data for the user's clothes, and a performance evaluation of a vision-based recognizer, which is means for recognizing the user's image information for the clothes.

Abstract: An automatic charging device and method of an automatically traveling cleaner are disclosed. Since a charging terminal unit is installed inside a traveling cleaner and selectively drawn out, the traveling cleaner is prevented from being damaged from collision with an object while being moved forwardly. In addition, because a power source terminal, a contact sensor unit and a charging terminal unit are formed in a shape of a circular arc, the entering angle of the traveling cleaner widens, so that the charging induction time can be much reduced and the charging can be performed easily and quickly.

Abstract: An optical disc drive comprises: a turntable for mounting an optical disc; a driving unit for rotating the turntable; and an optical disc heating means for heating a center portion of the optical disc. In the optical disc drive, an inner circumference temperature of the optical disc is maintained to be higher than a peripheral temperature of the optical disc by at least 50° C. According to this, a growth of a crack generated at a periphery of a hole of the optical disc is restrained thereby to effectively prevent a damage of the optical disc.

Abstract: Disclosed is a method of preventing optical recording media from being fractured and apparatus thereof, which enable to prevent an optical disc of an optical disc drive from being fractured due to a crack. The method and apparatus comprise: detecting a first tracking error signal outputted from a data recording/reproducing apparatus when the optical recording media are rotated at a first speed; detecting a second tracking error signal outputted from the data recording/reproducing apparatus when the optical recording media are rotated at a second speed; determining whether or not the crack on the optical disc exists on the basis of the first tracking error signal and the second tracking error signal; and stopping an operation of the data recording/reproducing apparatus when the optical recording media have the crack.

Abstract: The present invention discloses an optical disk formed according to double injection molding of forming an area of the optical disk on which a recording film is formed, namely, an outer circumferential area by using polycarbonate that is an amorphous polymer, and forming an area of the optical disk on which the recording film is not formed, namely, an inner circumferential area by using a semi-crystalline polymer having a similar elastic modulus to that of polycarbonate and having durability to a static fatigue, especially polyamide. Therefore, the optical disk is efficiently prevented from being damaged by restricting growth of cracks near its hole, obtaining excellent optical characteristics as an information recording medium.

Abstract: An automatic charging device and method of an automatically traveling cleaner are disclosed. Since a charging terminal unit is installed inside a traveling cleaner and selectively drawn out, the traveling cleaner is prevented from being damaged from collision with an object while being moved forwardly. In addition, because a power source terminal, a contact sensor unit and a charging terminal unit are formed in a shape of a circular arc, the entering angle of the traveling cleaner widens, so that the charging induction time can be much reduced and the charging can be performed easily and quickly.

Abstract: A toy having a detachable central processing unit is disclosed and includes a central processing unit having a growth algorithm for learning purposes, a driving unit for exhibiting learned actions and functions, and a link unit for linking the central processing unit and the driving unit. When the central processing unit is detached from the driving unit, the toy can learn via a cyber character or can be utilized as a Personal Digital Assistant (PDA), mobile phone, or a personal computer. When the driving unit is linked to the central processing unit, the toy's learning abilities are improved.

Abstract: A toy having a detachable central processing unit is comprised of a central processing unit with a built-in growth algorithm for having the toy grow, a driving unit for exhibiting action according to growth or outputting an audio information and a link unit for linking the central processing unit and the driving unit. Therefore, in case of using just the central processing unit, the toy with which the toy can grow or to which application programs are installed using the cyber character so as to utilize as a Personal Digital Assistant (PDA), mobile phone and a computer for home-use. Also, in case the toy is combined with the central processing unit, it can perform more improved actions thus to give a variety of learning chances and attract a variety of interest.

Abstract: In an apparatus and a method for operating toys through a computer communication, an apparatus for operating toys through a computer communication comprises a communication server supplying message information through a computer communication in a network, an operation device interpreting the message information inputted from the communication servers, and a toy being inputted the message information from the operation device and performing a certain motion or outputting character information/audio information/image information corresponded to the inputted message information, accordingly a user can perform a computer communication with reality and have better interaction between users.

Abstract: A toy learning apparatus using a cyber community and a method thereof comprising a cyber community having a cyber character which grows by learning in online, and a toy which grows by receiving experience of the cyber character or experience of a user's learning can increase the interest of the user, promote the sale of the toy and supply the program update of the toy, contents and various kinds of information smoothly by connecting the actual toy and the cyber character which acts in the cyber community.

Abstract: A system for programming an interactive learning device, such as electronic toy, using a web server includes a first processing unit having a web server for providing a control module used for remote processing, a second processing unit linked to the first processor through the communication medium to exchange data with the first processor, an interactive device, such as a robot toy pet, having at least a processor and a memory and adapted to communicate with the first processing unit. The interactive device includes a sensor for collecting data and formulating a learned module. The interactive device receives the control module from the first processing unit and sends the learned module. The control module is updated with more advanced function to be performed by the interactive toy in response to the content of the learned module.

Abstract: The present invention is provided to solve the problem that the conventional cyber game on the basis of network decreases continuous interest of a user and sense for the real since a user can enjoy the game only in the cyber space and the toy driving system in accordance with the present invention comprises a toy driving system using a game program comprising a game program which is operated in the cyber space, including a cyber character, learning/growing toys corresponding to the cyber character, PC for outputting to the learning/growing toys the motion/voice command of the cyber character while a user operates the game program, embodying the motion/voice of the cyber character and outputting the intelligence/learning information according to the learned contents of the learning/growing toys, and a game server for outputting to the PC the command for embodying the motion/voice of the cyber character, receiving the intelligence/learning information and the game progress information of the learning/growing to

Abstract: A learning/growing system of a toy using real living goods to solve problems of conventional art, that is, that the method of conventional art is too simple and related to real life little, whereby the growing of the toy is monotonous and the user can not be interested in the toy continuously, comprises a learning/growing toy expressing desires for eating, learning, and playing at a certain time point, and grown intellectually and physically by being inputted products and goods information corresponding to satisfaction of the desires; a personal computer for downloading the goods information for satisfying the desires of the toy and inputting the information into the learning/growing toy; and a web server recognizing the desire generations of the toy and including advertising banners for various products of many companies and detailed information according to the banners.