Patent ID: 8659706

Claim:
A multi-chip antenna diversity architecture for mobile television that supports Picture-in-Picture (PIP), said multi-chip antenna diversity architecture comprising: a first receiver chip that receives a first program data that includes a first program ID (PID) set, said first receiver chip comprising: a crystal; a crystal oscillator circuit operatively connected to said crystal, wherein said crystal oscillator circuit generates a clock signal based on a frequency of said crystal; a crystal oscillator clock buffer operatively connected to said crystal oscillator circuit, wherein said crystal oscillator clock buffer receives said clock signal from said crystal oscillator circuit; and a diversity transmitter that transmits said first program data composed of said first program ID (PID) set; a second receiver chip that receives second program data that includes a second program ID (PID) set, said second receiver chip comprising: a clock phase locked loop (PLL) that receives said clock signal from said crystal oscillator clock buffer; a decoder that decodes said second program data; a diversity receiver that receives said first program data from said diversity transmitter, wherein said diversity receiver does not receive a reference clock signal from said diversity transmitter and wherein said crystal does not directly transmit a signal to said second receiver chip; and a Picture-in-Picture (PIP) combiner that combines said first program data received from said diversity receiver with said second program data received from said decoder to generate a combined PIP data stream, wherein said PIP combiner comprises a PID comparison module that compares said first PID set of said first program data with said second PID set of said second program data to detect an occurrence of a common PID.