Battery pack having a state of charge indicator
First Claim
1. A battery pack for a portable electronic device comprising:
- a case for carrying a battery, said case supporting;
a charge sensing circuit, the charge sensing circuit producing a discharge signal corresponding to a measurement of an amount of charge removed from a battery;
a processor responsive to the discharge signal from the charge sensor circuit to produce a signal corresponding to an amount of time prior to discharge of the battery based on a current rate of discharge of the battery; and
a display responsive to the signal corresponding to the amount of time to discharge the battery, configured to display a time period corresponding to the amount of time to discharge the battery based upon the current rate of discharge of the battery.
3 Assignments
0 Petitions
Accused Products
Abstract
A battery pack for a portable electronic device includes a case for carrying a battery. The case supports a charge sensing circuit carried by the case, the charge sensing circuit producing a discharge signal corresponding to a measurement of an amount of charge removed from a battery. The case also supports a processor responsive to the discharge signal from the charge sensor circuit to produce a signal corresponding to an amount of time prior to discharge of the battery based on a current rate of discharge and a display responsive to the signal to display a time period corresponding to the amount of time to discharge the battery based upon the current rate of discharge of the battery.
-
Citations
20 Claims
-
1. A battery pack for a portable electronic device comprising:
a case for carrying a battery, said case supporting; a charge sensing circuit, the charge sensing circuit producing a discharge signal corresponding to a measurement of an amount of charge removed from a battery; a processor responsive to the discharge signal from the charge sensor circuit to produce a signal corresponding to an amount of time prior to discharge of the battery based on a current rate of discharge of the battery; and a display responsive to the signal corresponding to the amount of time to discharge the battery, configured to display a time period corresponding to the amount of time to discharge the battery based upon the current rate of discharge of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
12. A battery pack for a portable electronic device comprises:
-
a case carrying a battery, the case supporting; a charge sensing circuit to produce an electrical signal corresponding to a measurement of an amount of charge removed from the battery; a processor responsive to the electrical signal from the charge sensor circuit to produce a signal corresponding to an amount of time prior to discharge of the battery in accordance with a history of operation of the battery; and a display, responsive to the signal indicating the amount of time prior to discharge, to display a time period corresponding to the amount of time to discharge the battery based upon a current mode of operation of the battery. - View Dependent Claims (13, 14, 15)
-
-
16. A method of indicating time remaining to discharge a battery contained in a battery case, the method comprising:
-
measuring and accumulating an amount of charge removed from the battery; determining the time remaining to discharge the battery from the amount of accumulated charge removed from the battery; and displaying, on a display carried by the battery case, a time period corresponding to the amount of time to discharge the battery. - View Dependent Claims (17, 18)
-
-
19. A method of indicating time remaining to charge a battery contained in a battery case, the method comprising:
-
measuring and accumulating an amount of charge inserted into the battery during charging of the battery; determining the time remaining to charge the battery from the amount of accumulated charge inserted into the battery; and displaying, on a display carried by the battery case, a time period corresponding to the amount of time to charge the battery. - View Dependent Claims (20)
-
Specification