Nicholas T Nguyen

US Patent:

20040028149, Feb 12, 2004

Filed:

Apr 11, 2003

Appl. No.:

10/411984

Inventors:

Stephen Krafft - Los Angeles CA, US
Patrick Pai - Honolulu HI, US
Jasmine Cheng - Irvine CA, US
Nicholas Nguyen - Lake Forest CA, US

International Classification:

H03K007/08

US Classification:

375/316000

Abstract:

Programmable integrated Digital Satellite Equipment Control (DiSEqC) transceiver. The DiSEqC functionality is integrated onto a semiconductor device. Rather than perform the DiSEqC protocol in software, the DiSEqC protocol is implemented in hardware thereby providing more reliable demodulation and improved robustness. The device's functionality may employ much more reliable communication schemes that are enabled by the hardware/integrated approach of implementing the DiSEqC protocol. The integrated approach allows extensive programmability of the various operational parameters thereby greatly improving the ease of future backward compatibility with legacy devices; devices employing this integrated DiSEqC functionality may be easily updated to conform to future enhancements of the DiSEqC protocol. Some of the now-improved features enabled by the integrated/monolithic approach of DiSEqC include programmable tone amplitude, programmable PWK duty cycle, programmable length of messages, programmable time between messages (before and after), programmable voltage thresholds, tone transmit amplitude detection, improved voltage regulator feedback.