Method and apparatus for detecting a touch on a device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9639225
APP PUB NO 20170083126A1
SERIAL NO

14858149

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method and circuitry for detecting a touch on a device is provided herein. Touch-sensing circuitry comprises two antennas coupled to two voltage-controlled oscillators (VCOs). A phase locked loop (PLL) is provided coupled to the VCOs. The PLL compares a VCO output with a frequency source (temperature controlled crystal oscillator (TCXO)), and outputs a tuning voltage (steering voltage) for the VCO that is based on the difference between the VCO frequency and the TCXO frequency. The steering voltages for each VCO are compared, and a decision is made as to whether or not a touch has been made to the antennas. If the antennas have been touched, a location of the touch is determined based on a difference in the steering voltages of the two VCOs.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • MOTOROLA SOLUTIONS, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kuyimbil, Murali Bayan Baru, MY 6 16
Lee, Wai Mun Penang, MY 91 1199
Lim, Bing Qin Jelutong, MY 61 313
Ooi, Lee Sun Kulim, MY 29 231
Teoh, Wooi Ping Georgetown, MY 18 83

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Nov 2, 2024
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 2, 2028
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00