Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10014842 | Method and apparatus for identifying audio accessory through two pin connection in a two way radio | Cheah Heng Tan | 2018-07-03 |
| 9648419 | Apparatus and method for coordinating use of different microphones in a communication device | Cheah Heng Tan, Pek B. Teo | 2017-05-09 |
| 9369800 | Intrinsically safe audio circuit for a portable two-way radio | Cheah Heng Tan, Friedrich Bollmann, Teik Seng Saw, Peter William Hilding Svendsen | 2016-06-14 |
| 8675903 | Acoustic porting for a portable communication device | Gim Pei Ng, Thean Hai Ooi, Cheah Heng Tan, Huoy Thyng Yow | 2014-03-18 |
| 8639300 | Method and apparatus for maintaining transmit audio in a half duplex system | Cheah Heng Tan, Thean Hai Ooi, Huoy Thyng Yow | 2014-01-28 |