Wacom Co., Ltd.

Yoshifumi Konda

Haruhiko Hisano

Hideyuki Hara

Masayuki Miyamoto

Sadao Yamamoto

Provided is a communication method for communication performed between a pen and a sensor controller that, in operation, transmits uplink signals to the pen in a frame cycle. The communication method includes transmitting, by the sensor controller, a first uplink signal in a first frame, the first uplink signal including an identifier that identifies a type of data to be transmitted to the pen in a second frame following the first frame, and transmitting, by the sensor controller, a second uplink signal in the second frame, the second uplink signal including a value of the data of the type indicated by the identifier.

Communication method for communication between pen and sensor controller

A method to be performed by a sensor controller that periodically transmits an uplink signal, and by a stylus that, upon receiving the uplink signal, determines a transmission and reception schedule for a downlink signal and the uplink signal on the basis of the reception timing of the uplink signal. The method includes executing, by the stylus, an uplink signal receiving operation for a first predetermined period of time according to the transmission and reception schedule. The method includes, responsive to the uplink signal not received through the receiving operation and expiration of the first predetermined period of time, continuing, by the stylus, the uplink signal receiving operation for a second predetermined period of time, instead of transmitting the downlink signal according to the transmission and reception schedule.

Method to be performed by stylus and sensor controller, stylus, and sensor controller

A pen is configured to supply an N-bit internal digital value NA to a sensor device, and includes an integrated circuit that acquires a series of the internal digital values NA(s) based on a state OPS of a writing pressure detector. The integrated circuit supplies a first internal digital value NA to the sensor device by transmitting, from an antenna, first transmission data MF including a first standard digital value MS corresponding to the first internal digital value NA. The integrated circuit supplies a second internal digital value NA to the sensor device by transmitting, from the antenna, second transmission data MF that is smaller than N bits and includes an M-bit relative digital value (M<N) corresponding to a relative value between the first internal digital value NA obtained by restoration from the first standard digital value MS and the second internal digital value NA.

Pen, sensor device, and pen system

A pairing method between a stylus and a position detecting apparatus that detects a position pointed to by the stylus includes: sharing, by the position detecting apparatus, a sensor identifier (ID) that is included in an uplink signal transmitted to the stylus while the stylus and the position detecting apparatus are proximate to each other at or within a predetermined distance, the sensor ID uniquely identifying the position detecting apparatus; and determining, by the position detecting apparatus using the sensor ID, whether information is transmitted from the stylus, the information being transmitted via a first wireless communication having a range that is longer than the predetermined distance.

Pairing method, position detecting system, position indicator and position detecting apparatus

A pen is configured to supply an N-bit internal digital value NA to a sensor device, and includes an integrated circuit that acquires a series of the internal digital values NA(s) based on a state OPS of a writing pressure detector. The integrated circuit supplies a first internal digital value NA to the sensor device by transmitting, from an antenna, first transmission data MF including a first standard digital value MS corresponding to the first internal digital value NA. The integrated circuit supplies a second internal digital value NA to the sensor device by transmitting, from the antenna, second transmission data MF that is smaller than N bits and includes an M-bit relative digital value (M&#x3c;N) corresponding to a relative value between the first internal digital value NA obtained by restoration from the first standard digital value MS and the second internal digital value NA.

A pairing method includes sharing, between a position indicator and a position detecting apparatus, predetermined sharing information that becomes sharable if the position indicator and the position detecting apparatus are proximate to each other at or within a predetermined distance; and determining, by a first one of the position indicator and the position detecting apparatus and using the shared sharing information, whether information received by a first communication device having a range longer than the predetermined distance is transmitted by a second one of the position indicator and the position detecting apparatus, the first one of the position indicator and the position detecting apparatus being different from second one of the position indicator and the position detecting apparatus.

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Saitama, Japan

Yoshifumi Konda