Patent application number | Description | Published |
20110148785 | POINTER DETECTION APPARATUS AND POINTER DETECTION METHOD - A pointer detection apparatus and a pointer detection method of the cross point electrostatic coupling type are disclosed, by which a pointer on a conductor pattern can be detected at a higher speed. The pointer detection apparatus includes a conductor pattern, a spread code supplying circuit, a reception conductor selection circuit, an amplification circuit, an analog to digital conversion circuit, and a correlation value calculation circuit. The spread code supplying circuit supplies a plurality of spread codes at the same time. The correlation value calculation circuit determines correlation values between signals output from the analog to digital conversion circuit and the correlation calculation codes respectively corresponding to the spread codes. A pointer is detected based on the determined correlation values. | 06-23-2011 |
20110148806 | POINTER DETECTION APPARATUS AND POINTER DETECTION METHOD - A pointer detection apparatus and a pointer detection method of the cross point electrostatic coupling type are disclosed, by which a pointer on a conductor pattern can be detected at a higher speed. The pointer detection apparatus includes a conductor pattern, a spread code supplying circuit, a reception conductor selection circuit, an amplification circuit, an analog to digital conversion circuit, and a correlation value calculation circuit. The spread code supplying circuit supplies a plurality of spread codes at the same time. The correlation value calculation circuit determines correlation values between signals output from the analog to digital conversion circuit and the correlation calculation codes respectively corresponding to the spread codes. A pointer is detected based on the determined correlation values. | 06-23-2011 |
20110153263 | POINTER DETECTION APPARATUS AND POINTER DETECTION METHOD - A pointer detection apparatus and a pointer detection method of the cross point electrostatic coupling type are disclosed, by which a pointer on a conductor pattern can be detected at a higher speed. The pointer detection apparatus includes a conductor pattern, a spread code supplying circuit, a reception conductor selection circuit, an amplification circuit, an analog to digital conversion circuit, and a correlation value calculation circuit. The spread code supplying circuit supplies a plurality of spread codes at the same time. The correlation value calculation circuit determines correlation values between signals output from the analog to digital conversion circuit and the correlation calculation codes respectively corresponding to the spread codes. A pointer is detected based on the determined correlation values. | 06-23-2011 |
20110155479 | POINTING MEMBER, POSITION DETECTION APPARATUS AND POSITION DETECTION METHOD - Methods and apparatus are provided to further facilitate detection not only of a position on a position detector pointed to by a pointing member, but also of information other than the position information such as pen pressure applied to the pointing member, in a position detection apparatus of the electrostatic coupling type. In one embodiment, a pointing member includes a first electrode substantially in the form of a rod, a substantially cylindrical second electrode disposed in such a manner as to surround the first electrode, and a transmission signal production section for producing a signal of a first frequency f | 06-30-2011 |
20110193776 | POINTER, POSITION DETECTION APPARATUS AND POSITION DETECTION METHOD - A position detection apparatus of the electrostatic coupling type is provided, to detect not only a position of a pointer but also information other than the position information such as, for example, pointer pressure or side switch information. The pointer transmits two codes such that a pressure applied to a pen tip is associated with a time difference between the two codes. A position detector carries out a correlation matching operation between signals generated in reception conductors and correlation calculation codes corresponding to the two codes, to thereby detect a position on a sensor section pointed to by the pointer from a result of the correlation matching operation and based on at least one of the codes. The position detector further includes a pressure calculation circuit for detecting pressure applied to the pointer, which is associated with the time difference between the two codes, from the result of the correlation matching operation calculated by the correlation matching operation and based on the two codes. | 08-11-2011 |
20110216032 | POSITION DETECTION APPARATUS - A position detection apparatus is provided, which includes a plurality of position detection systems such as an electromagnetic-type position detection system and a capacitive-type position detection system. The apparatus is configured to select a transmission conductor among a plurality of transmission conductors in a first position detection system, and to select a reception conductor among a plurality of reception conductors in a second position detection system, so as to increase the spatial distance between the selected transmission conductor in the first position detection system and the selected reception conductor in the second position detection system as much as possible, to thereby reduce interference. Further, a relationship of frequency interleave may be provided between a transmission signal to be supplied to the transmission conductor in the first position detection system and another transmission signal to be supplied to the transmission conductor in the second position detection system. | 09-08-2011 |
20110234508 | POINTER DETECTION APPARATUS AND DETECTION SENSOR - A pointer detection apparatus is provided, which is capable of detecting a pointed position and a pressure applied by a pointer on a detection sensor. The detection sensor includes a plurality of first conductors disposed in a first direction, a plurality of second conductors disposed in a second direction crossing with the first direction, and a pressure sensitive material disposed between the first and second conductors and having a variable resistance characteristic. When a pointer is positioned in the proximity of (but not in contact with) the detection sensor or when a pressure applied to the detection sensor by the pointer in contact with the detection sensor is equal to or lower than a threshold, detection signals corresponding to variation in electrostatic capacity between the first and second conductors are supplied. When the pressure applied to the detection sensor is higher than the threshold, detection signals corresponding to variation in resistance characteristic of the pressure sensitive material are supplied. | 09-29-2011 |
20120139561 | DETECTING SENSOR, INDICATOR POSITION DETECTING DEVICE, AND METHOD FOR MANUFACTURING DETECTING SENSOR - A detecting sensor is provided, including: on a base material, a plurality of first sensor conductors arranged in a first direction; a plurality of second sensor conductors arranged in a second direction intersecting the first direction; a plurality of first signal lines electrically connected to the first sensor conductors; a plurality of second signal lines electrically connected to the second sensor conductors; and a first conductive pattern disposed between the first signal lines and the base material, the first conductive pattern being electrically insulated from the first signal lines, the first conductive pattern being set to a predetermined potential, and the first conductive pattern being made of a same material as that used to form at least one of the first sensor conductors and the second sensor conductors. | 06-07-2012 |
20120146940 | POINTER DETECTION APPARATUS AND POINTER DETECTION METHOD - A pointer detection apparatus includes a conductor pattern formed of intersecting first and second conductors. A signal supplying circuit generates transmission signals each comprised of a first code and a second code having an equal code length and having a predetermined relationship to each other, and supplies the generated transmission signals to the first conductors. A signal detection circuit is connected to the second conductors and detects reception signals, at least one of which corresponds to a variation of capacitance between the conductor pattern and a pointer. A correlation arithmetic operation circuit calculates, for each of the reception signals, first and second correlation values between the reception signal and first and second correlation value arithmetic operation signals corresponding to the first and second codes, respectively. A synthesis circuit calculates, for each pair of the first and second correlation values, a synthesis correlation value, based on which the pointer is detected. | 06-14-2012 |
20120256830 | POSITION POINTER - A position pointer is provided for use with a position detection sensor, capable of achieving power saving. The position pointer includes: a first electrode configured to receive an AC signal from a position detection sensor; a transmission signal production circuit configured to produce a position signal, based on which the position detection sensor detects a position of the position pointer; a second electrode different from the first electrode and configured to transmit the position signal to the position detection sensor; a signal detection circuit configured to detect whether or not the AC signal from the position detection sensor is received through the first electrode; and a transmission controlling circuit configured to control transmission of the position signal through the second electrode to the position detection sensor in response to an output from the signal detection circuit. | 10-11-2012 |
20120278031 | MULTI-TOUCH AND MULTI-USER DETECTING DEVICE - A system and method are provided to enable the indication positions of respective indicators (e.g., fingers) to be detected (multiple-point detection) and also to enable detection of the users of the indicators (user detection). Signal generators for generating different signals for respective users are provided, and the signals from the signal generators are supplied to a sensor section through indicators. In a multi-touch and multi-user detecting device | 11-01-2012 |
20140028587 | INDICATOR POSITION DETECTING DEVICE - Disclosed herein is an indicator position detecting device that reduces unwanted radiation from a sensor section, while being capable of robustly charging a pen-type position indicator with the sensor section, without requiring reduction in area size of a display region and a detecting region of the sensor section even when the overall device size is reduced. The sensor section has an X-axis direction loop coil group and a Y-axis direction loop coil group disposed in intersecting directions. When a transmission signal is supplied to loop coils of at least one of the X-axis direction loop coil group and the Y-axis direction loop coil group, a control circuit controls a selecting circuit so as not to supply the transmission signal to a determined number of loop coils disposed in at least one peripheral region of the sensor section. | 01-30-2014 |
20150070315 | POINTER, POSITION DETECTION APPARATUS AND POSITION DETECTION METHOD - A position detection apparatus of the electrostatic coupling type is provided, to detect not only a position of a pointer but also information other than the position information such as, for example, pointer pressure or side switch information. The pointer transmits two codes such that a pressure applied to a pen tip is associated with a time difference between the two codes. A position detector carries out a correlation matching operation between signals generated in reception conductors and correlation calculation codes corresponding to the two codes, to thereby detect a position on a sensor section pointed to by the pointer from a result of the correlation matching operation and based on at least one of the codes. The position detector further includes a pressure calculation circuit for detecting pressure applied to the pointer, which is associated with the time difference between the two codes, from the result of the correlation matching operation calculated by the correlation matching operation and based on the two codes. | 03-12-2015 |
20150070316 | POINTER, POSITION DETECTION APPARATUS AND POSITION DETECTION METHOD - A position detection apparatus of the electrostatic coupling type is provided, to detect not only a position of a pointer but also information other than the position information such as, for example, pointer pressure or side switch information. The pointer transmits two codes such that a pressure applied to a pen tip is associated with a time difference between the two codes. A position detector carries out a correlation matching operation between signals generated in reception conductors and correlation calculation codes corresponding to the two codes, to thereby detect a position on a sensor section pointed to by the pointer from a result of the correlation matching operation and based on at least one of the codes. The position detector further includes a pressure calculation circuit for detecting pressure applied to the pointer, which is associated with the time difference between the two codes, from the result of the correlation matching operation calculated by the correlation matching operation and based on the two codes. | 03-12-2015 |
20150070317 | POINTER, POSITION DETECTION APPARATUS AND POSITION DETECTION METHOD - A position detection apparatus of the electrostatic coupling type is provided, to detect not only a position of a pointer but also information other than the position information such as, for example, pointer pressure or side switch information. The pointer transmits two codes such that a pressure applied to a pen tip is associated with a time difference between the two codes. A position detector carries out a correlation matching operation between signals generated in reception conductors and correlation calculation codes corresponding to the two codes, to thereby detect a position on a sensor section pointed to by the pointer from a result of the correlation matching operation and based on at least one of the codes. The position detector further includes a pressure calculation circuit for detecting pressure applied to the pointer, which is associated with the time difference between the two codes, from the result of the correlation matching operation calculated by the correlation matching operation and based on the two codes. | 03-12-2015 |