ISP Information:
This power management interface takes the power management out of the BIOS and gives control to the operating system (OS). Typically, a system's BIOS is only able to turn a device off after a certain period of inactivity. With ACPI, the user can instruct the OS to slow down the processor or enter sleep mode. This basically gives the OS, and thus the user, more control of power management.
ISP Glossary:
ACPI - I had written: AFAIK, CDMA phones pick up the time the network operator sendsAnd Jay Ashworth replied: CDMA phones take timing from GPS; I undertsand it's right in the air interface spec. The phones and the MTSO all have to be locked together to chip-rate specs anywayI think the primary evidence that CDMA phones are not getting theirtime or timing directly from GPS would be the fact that there are manyplaces where no GPS signal could possibly reach the phone where thephone will still work and still display the time. For example,Verizon's CDMA phones work deep underground in the Washington, DC,subway.The network could possibly use GPS for synchronization and for thesource of the "GPS time", but again, here it would be up to theoperator to send the proper time information to the phone. The phonedefinitely does not rely on (or as far as I know for most phones evenhave the capability for) direct reception of the GPS signal.I just powered up my CDMA Motorola V60 onto the Verizon network herein Boston; it moved to "11:35" within about a second as compared tothe Naval Observatory Master Clock. The delay could be Verizon or itcould be the update frequency of the display./john
|
