PENANDFREE CO., LTD.
|PENANDFREE CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20130286166||3D STEREOSCOPIC IMAGE DISPLAY SYSTEM AND 3D STEREOSCOPIC IMAGE DISPLAY METHOD USING THE SAME - Provided are a stereoscopic image display unit having a 3D information input device and a 3D stereoscopic image display method using the 3D information input device. The 3D information input device receives a synchronization signal used for a conventional stereoscopic image display unit and generates an ultrasonic signal. The stereoscopic image display unit receives the ultrasonic signal through the ultrasonic wave reception units installed at a plurality of areas and measured a distance between the 3D information input device and each of the ultrasonic wave reception units by using a time difference between a generation time of the synchronization signal and a reception time of the ultrasonic signal and measures a position of the 3D information input device in a 3D real space by using the distances. The measured position of the 3D information input device in the 3D real space is converted into a coordinate in the 3D stereoscopic image space. A position of the 3D information input device functioning as a mouse or a remote controller is stereoscopically displayed on the 3D stereoscopic image, so that click information or menu selection information can be input. A synchronization signal logic used for a conventional stereoscopic image display unit is employed, so that it is possible to embody a 3D remote controller or a 3D mouse without an increase in cost caused by addition of the configuration.||10-31-2013|
|20120314543||SIGNAL GENERATION DEVICE - Provided is a signal generation device used for an information input method using an ultrasonic signal. Contact electrodes which are formed in a flexible printed circuit board to be in contact with an ultrasonic wave generation unit and reference signal generation units are disposed in a row, so that a length of the flexible printed circuit board can be reduced. Accordingly, in comparison with a signal generation module in the related art, a length of the signal generation module can be reduced, so that the signal generation device can be miniaturized. In addition, in order to maintain the contact between contact electrodes of the flexible printed circuit board and the ultrasonic wave generation unit, the contact electrodes which are in contact with the ultrasonic wave generation unit and the flexible printed circuit board are surrounded by a contact maintaining member which is constructed with a cylindrical elastic member.||12-13-2012|
|20120206417||INFORMATION INPUTTING DEVICE AND INFORMATION INPUTTING METHOD - Provided are an information inputting device and an information inputting method capable of inputting information to a portable electronic apparatus by using a touch panel and an electronic pen. In the information inputting device and the information inputting method, the portable electronic apparatus including a touch panel is combined with a receiver which receives an ultrasonic wave signal and a reference signal, so that it is possible to input information by using the touch panel and to accurately input information by using the electronic pen which emits the ultrasonic wave signal.||08-16-2012|
|20120194485||SIGNAL GENERATION DEVICE - Provided is a signal generation device used for an information input system using an ultrasonic signal. A portion of a pen core portion is designed to have a different cross-sectional area (diameter) so that the portion having a different cross-sectional area is held by an inner portion of a housing or a cap member. Therefore, the pen core portion can be naturally supported without use of an additional configuration such as a retainer. Particularly, in a signal generation device in the related art, if elasticity of a retainer is weakened due to long term use, the pen core cannot be supported. However, according to the present invention, since the pen core is supported by using a structural inner portion in the housing, the pen core can be stably supported irrespective of long term use.||08-02-2012|
|20120139863||APPARATUS AND METHOD FOR INPUTTING WRITING INFORMATION ACCORDING TO WRITING PATTERN - Provided are a method and apparatus for inputting handwriting in a digital electronic apparatus. Various patterns defining methods of generating pressure information according to handwriting input are stored in advance, and a user selects a pattern similar to a pattern of the user or selects a desired handwriting pattern to perform the handwriting, so that pressure information is generated according to the handwriting pattern and the handwriting is displaying with a thickness corresponding to the pressure information. Therefore, it is possible to solve a problem of monotonous handwriting input in the related art where only the position is input and the handwriting is output with the same thickness.||06-07-2012|
|20120105314||METHOD AND SYSTEM FOR INPUTTING INFORMATION USING ULTRASONIC SIGNALS - Provided are an information input system and an information input method using an ultrasonic signal. In the information input system or method, a signal generation apparatus for generating a reference signal and an ultrasonic signal or an information input apparatus for generating a reference signal receives a reference signal and an ultrasonic signal which are generated by a different signal generation apparatus which inputs information in an adjacent area or the information input apparatus, determines whether or not there is a possibility of interference of the signals generated by the different signal generation apparatus or the information input apparatus, and adaptively changes an effective section where the reference signal and the ultrasonic signal are generated to an idle section in the same period or the next period if it is determined that there is a possibility of the interference, so that the signal interference is prevented. Therefore, even in the environment where a plurality of the information input systems are present, it is possible to stably input information.||05-03-2012|
|20090257315||POSITION TRACING SIGNAL GENERATOR UNIT AND INPUT SYSTEM HAVING THE SAME - Disclosed are a position tracing signal generator unit and an input system using the same. The position tracing signal generator unit of the present invention generates ultrasonic signals with a constant time interval to allow ultrasonic signals generated from a plurality of ultrasonic signal generator to be overlapped and amplified. It is possible to increase the intensity of the ultrasonic signal and lengthen the range. Due to the structural advantages of the present invention as described above, it is possible to solve a problem of the prior art, i.e., a large thickness of the position tracing signal generator unit caused by a large size of the ultrasonic sensor for increasing the intensity of the ultrasonic signal.||10-15-2009|
Patent applications by PENANDFREE CO., LTD.