Patent Number: 7,280,616

Title: Optimizing a filter bandwidth in a digital receiver

Abstract: A digital receiver comprises a quadrature zero intermediate frequency tuner supplying I and Q components to adjustable low pass analog filters. In the case of OFDM signals, a demodulator contains a measuring arrangement which determines the average power of carriers at the band edges and the average power of the OFDM carriers. These are compared and a controller increases the passbands of the filters 7 and 8 until the average level of the edge carrier is substantially equal to the average level of all of the carriers.

Inventors: Arambepola; Bernard (London, GB), Cowley; Nicholas Paul (Wroughton, GB)

Assignee: Intel Corporation

International Classification: H03K 9/00 (20060101); H04L 27/00 (20060101)

Expiration Date: 2019-10-09 0:00:00