Abstract: Methods, systems, and apparatuses for enabling mobile TV functionality and universal serial bus (USB) functionality are provided. In an example aspect, a mobile television (TV) system includes a mobile TV receiver module and a universal serial bus (USB) interface. The mobile TV receiver module receives a radio frequency (RF) mobile TV signal that includes TV data, and generates a mobile TV data signal that includes the TV data. The USB interface receives the mobile TV data signal, and generates a USB output data signal that includes the TV data. In an aspect, the mobile TV functionality and USB functionality are provided in an integrated circuit chip. In one example, the mobile TV functionality and USB functionality share at least one power supply. In another example, the mobile TV functionality and USB functionality are powered by respective power supplies that are electrically isolated from each other.

Abstract: A system and method for improved performance by a DVB-H receiver is described that allows good Internet Protocol (IP) packets in a Multiprotocol Encapsulation-Forward Error Correction (MPE-FEC) frame to be salvaged even when there are other IP packets in the frame that may have bytes in error after the performance of MPE-FEC operations. To achieve this, the system and method provides a means for ascertaining where IP packets loaded into a memory begin and end in a manner that can be relied upon even when individual bytes of the IP packets, such as certain bytes of the IP packet header used to determine total packet length, may be in error.

Abstract: A hardware-implemented video broadcasting receiver is described. The hardware-implemented video broadcasting receiver includes a radio frequency (RF) tuner, a demodulator connected to the RF tuner, link layer logic connected to the demodulator, and a power manager connected to the RF tuner, the demodulator and the link layer logic. The power manager is configured to receive delta-T values extracted from a transport stream by the link layer logic, to determine whether each of the RF tuner, the demodulator and the link layer logic can be powered down based on the delta-T values, and to power down the RF tuner, the demodulator and the link layer logic based on the determination, thereby reducing the average power consumed by the video broadcasting receiver.

Abstract: The clock generating portion of a communication system includes a low-power, high-jitter phase locked loop (PLL) and a high-power, low-jitter PLL. Control logic within the chip allows for selective switching between the low-power and high-power PLL for receiving the broadcast signals, such as mobile TV signals. The switching may occur in a manner that is dependent on the conditions of the wireless channel and/or the complexity of the modulation scheme being used. The switching may be used to provide an oscillating signal from one or both of the PLLs to a receiver to be used to receive communication signals. The control logic may power off one of the PLLs to save power when not in use.