Portable electronic system and accessing method thereof

Details Portable electronic system and accessing method thereof Portable electronic system and accessing method thereof

2007-01-09

2007-01-09

Perveen, Rehana (Department: 2112)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus expansion or extension

C710S002000

Reexamination Certificate

active

10858676

ABSTRACT:
A portable electronic device equipped with multi-function high speed bus and the relevant method is provided in the invention. The portable electronic device includes a main electronic apparatus for connecting to an expansion device through an expansion pack. The central processing unit (CPU) of the main electronic apparatus is connected to the host controller by a first system bus. The host controller is connected to the expansion pack by a multi-function high speed bus. The first system bus is electrically connected to the CPU and includes P signal lines; the multi-function high speed bus includes Q signal lines, where Q<P. The host controller bridges the signals from P signal lines of the first system bus and the signals from the Q signal lines of the multi-function high speed bus. The host controller receives the signals from the first system bus in M clock cycles and outputs the signals to the multi-function high speed bus in N clock cycles, where N>M.

REFERENCES:
patent: 6088752 (2000-07-01), Ahern
patent: 6567881 (2003-05-01), Mojaver et al.
patent: 6950889 (2005-09-01), Ishida et al.
patent: 1318171 (2001-10-01), None

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