Qualcomm Incorporated

Chauhung Lee

Sanjay K Jha

Albert Scott Ludwin

Nicholas K Yu

Raghu Sankuratri

Richard Higgins

Mehraban Iraninejad

Safi Khan

The dual microprocessor system includes one microprocessor configured to perform wireless telephony functions and another configured to perform personal digital assistant (PDA) functions and other non-telephony functions. A memory system and a digital signal processor (DSP) are shared by the microprocessors. By providing a shared memory system, data required by both data microprocessors is conveniently available to both of the microprocessors and their peripheral components thereby eliminating the need to provide separate memory subsystems and further eliminating the need to transfer data back and forth between the separate memory subsystems. By providing a shared DSP, separate DSP devices need not be provided, yet both microprocessors can take advantage of the processing power of the DSP. In a specific example described herein, the microprocessors selectively program the DSP to perform, for example, vocoder functions, voice recognition functions, handwriting recognition functions, and the like.

Mobile communication device having dual micro processor architecture with shared digital signal processor and shared memory

Growing community of inventors

Poway, CA, United States of America

Chauhung Lee