Patent attributes
An electronic pen includes a pen tip, circuitry, and a shell. The shell houses the circuitry and is coupled to the pen tip. The pen tip includes a primary conductor, a secondary conductor and shielding between the primary conductor and the secondary conductor. The circuitry includes a transmit/receive circuit, a raw data circuit, and a secondary circuit. The transmit/receive circuit receives a signal from a touch screen via the primary conductor, generates a ring-back signal based on the signal, and transmits the ring-back signal via the primary conductor to the touch screen. The raw data circuit generates raw data regarding the electronic pen. The secondary circuit receives the raw data, up-converts the raw data into a data transmit signal, and transmits the data transmit signal via the secondary conductor to the touch screen.
