Siemens Information & Communication Networks, Inc.

Cheryl Gold

Shmuel Shaffer

William Joseph Beyda

Jay Thomas

A CPU speed control system for use in devices having microprocessors or microcontrollers which may also be operated using battery power. The system includes a programmable frequency synthesizer for providing the CPU and other system buses in the device with a variable clocking frequency based on the application or interrupt being executed by the device. The frequency synthesizer output may be dynamically varied according to a particular application or task that is to be executed by the device or based on total CPU usage. The operating system of the device and the CPU are both capable of controlling the frequency synthesizer output to ensure that the CPU is operating at the most power efficient level possible.

Apparatus and method for automatic CPU speed control based on application-specific criteria

An apparatus and method allow a telephone user to be automatically connected, in sequence, to multiple telephone numbers in response to a single directory assistance query. The user can elect to put all numbers retrieved by his request into a queue, or can queue a subset. The user can further elect to be connected to all numbers in the queue, or can dial some and skip some. An analogous apparatus and method allow a user connected to the internet to navigate by voice interaction through queued site-visit options.

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Palo Alto, CA, United States of America

Cheryl Gold