|MaxRise Inc. Patent applications|
|Patent application number||Title||Published|
|20120328054||RECEIVER AND SIGNAL RECEIVING METHOD THEREOF - A signal receiving method of a receiver includes the following steps. A time-domain received signal is transformed into a frequency-domain received signal, which includes multiple pilot symbols and multiple data symbols. Multiple channel impulse responses corresponding to the pilot symbols are estimated. Multiple inter-carrier interference and inter-block interference (ICIIBI) values corresponding to the pilot symbols are estimated based on the pilot symbols and the corresponding channel impulse responses. Multiple ICIIBI values corresponding to the data symbols are obtained via an interpolation operation according to the ICIIBI values corresponding to the pilot symbols. The estimated corresponding ICIIBI values are cancelled from the data symbols. The interference-cancelled data symbols are demapped to obtain soft-decision or hard-decision bits.||12-27-2012|
|20120034894||AUTOMATIC GAIN CONTROL SYSTEM WITH DUAL-RSSI INTERFERENCE DETECTION FOR OPTIMIZATION OF SENSITIVITY AND ADJACENT CHANNEL REJECTION PERFORMANCE OF RF RECEIVERS - A tuner includes a low noise amplifier (LNA), a first received signal strength indicator (RSSI), a mixer, an intermediate frequency (IF) filter, a second RSSI and an adjustment unit. The LNA amplifies a radio frequency (RF) signal. The first RSSI detects received signal strength indication of the RF signal and obtains a first signal strength voltage. The mixer is coupled to the LNA and down-converts the RF signal into a first IF signal according to a local oscillation frequency. The IF filter is coupled to the mixer and filters the first IF signal to obtain a second IF signal. The second RSSI detects received signal strength indication of the second IF signal and obtains a second signal strength voltage. The adjustment unit adjusts a gain of the LNA according to the first signal strength voltage and the second signal strength voltage.||02-09-2012|
|20100022211||Low noise, highly linear amplifying stage and signal receiver using the same - The invention provides a signal amplifying stage, used in a signal receiver. The signal amplifying stage has: a fixed-gain low noise amplifier (LNA), amplifying an input signal; a variable-gain LNA (VG-LNA) array, amplifying the input signal, including a plurality of parallel VG-LNAs, the VG-LNA array being parallel with the fixed-gain LNA; a variable-gain amplifier (VGA), being in series with the fixed-gain LNA and the VG-LNA array, for amplifying output signals from the fixed-gain LNA and the VG-LNA array to generate an output signal; an attenuator, being in parallel with a combination of the fixed-gain LNA, the VG-LNA array and the VGA, for attenuating the input signal to generate the output signal; and a control loop, coupled to the VGA and the attenuator, for detecting power levels of the output signal to enable and control the fixed-gain LNA, the VG-LNA array, the VGA and the attenuator.||01-28-2010|
|20090243052||Electronic device with shielding structure and method of manufacturing the same - An electronic device includes a substrate, an active circuit, and a shielding structure. The active circuit is formed on the substrate. The shielding structure is disposed surrounding the active circuit, and includes a first heavy ion-doped region, first metal stack, second heavy ion-doped region, second metal stack and top metal. The first heavy ion-doped is formed in the substrate and located at a first side of the active circuit. The first metal stack is formed on the first heavy ion-doped region of the substrate, wherein the first metal stack is connected to a ground voltage. The second heavy ion-doped region is formed in the substrate and located at a second side of the active circuit. The second metal stack is formed on the second heavy ion-doped region of the substrate. The top metal is formed on the first metal stack and second metal stack and passing over the active circuit.||10-01-2009|
Patent applications by MaxRise Inc.