Keyboard sensor systems and methods
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 8, 2024
Grant Date -
Aug 4, 2022
app pub date -
Apr 21, 2022
filing date -
Dec 20, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
A sensing system for a keyboard. Each key sensor comprises passive and active resonant circuits. The passive resonant circuit has a resonant frequency and the active resonant circuit excites the passive resonant circuit at the resonant frequency. A sensor driver drives the active resonant circuit with an RF drive signal, a multiplexing system multiplexes the drive signal such that simultaneously driven key sensors are separated by at least (k−1) keys, and a detector detects a level of RF signal from a driven key sensor for sensing a position and/or velocity of a key.
First Claim
Other Claims data not available
Family
Loading Family data...
International Classification(s)
- 2022 Application Filing Year
- H03K Class
- 1998 Applications Filed
- 1198 Patents Issued To-Date
- 59.96 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H03K Class
- 0 % this patent is cited more than
- 1 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Apr 8, 2028 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Apr 8, 2032 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 8, 2036 |
