Method and apparatus for displaying a charge level of a battery

• US 5,406,188 A
• Filed: 05/03/1993
• Issued: 04/11/1995
• Est. Priority Date: 05/03/1993
• Status: Expired due to Term

• Current Assignee: NCR Corporation (NCR Voyix Corporation)
• Original Assignee: NCR Corporation (NCR Voyix Corporation)
• Inventors: Heredia, Rafael, Myslinski, Theodore A.
• Primary Examiner(s): Hickey, R. J.
• Application Number:
  US08/056,081
• Time in Patent Office: 708 Days
• Field of Search: 320/14, 320/48, 320/13, 324/429, 324/430, 340/636
• US Class Current: 340/636.1
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H02J 7/0049 Detection of fully charged condition
• CPC Class Codes: Y10S 320/18 Indicator or display
• CPC Class Codes: Y10S 320/21 State of charge of battery

Abstract

A method for displaying a charge level of a battery includes the steps of (1) displaying the charge level of the battery in a first manner during battery charging, and (2) displaying the charge level of the battery in a second manner which is different than the first manner during battery discharging. The first manner displaying step includes the step of operating a battery charge level indicator in a first mode, and the second manner displaying step includes the step of operating the battery charge level indicator in a second mode which is different than the first mode. In addition, a battery charge level indicator is disclosed and includes a display for indicating a charge level of a battery, and a mechanism for operating the display so as to indicate whether the battery is in a charge state of operation or a discharge state of operation.

Claims

1. A method for displaying charge levels of a battery, comprising the steps of:

displaying a first series of at least two different charge levels of the battery in a first manner during battery charging; and

displaying a second series of at least two different charge levels of the battery in a second manner which is different than the first manner during battery discharging,

wherein the first manner displaying step includes the step of operating a battery charge level indicator in a first mode, and the second manner displaying step includes the step of operating the battery charge level indicator in a second mode which is different than the first mode,

wherein the battery charge level indicator includes a first indicator portion and a second indicator portion, each representing a certain quantity of charge remaining in the battery, and further

wherein the first mode operating step includes the steps of;

indicating a first charge level of the first series by flashing the first indicator portion while causing the second indicator portion to remain inactivated; and

indicating a second charge level of the first series by flashing the second indicator portion while causing the first indicator portion to remain activated.

2. The method of claim 1, wherein the second mode operating step includes the steps of:

indicating a first charge level of the second series by causing the first indicator portion to remain activated while causing the second indicator portion to remain inactivated; and

indicating a second charge level of the second series by causing both the first indicator portion and the second indicator portion to remain activated.

7. The method of claim 2, wherein the first charge level of the first series is equal to the first charge level of the second series.

8. The method of claim 7, wherein the second charge level of the first series is equal to the second charge level of the second series.

3. A method for displaying charge levels of a battery adapted to power a portable computer, with the portable computer having a charge state of operation and a discharge state of operation, comprising the steps of:

displaying a first series of at least two different charge levels of the battery in a first manner during the charge state of operation of the portable computer; and

displaying a second series of at least two different charge levels of the battery in a second manner, which is different from the first manner, during the discharge state of operation of the portable computer,

wherein the first manner displaying step includes the step of operating a battery charge level indicator in a first model and the second manner displaying step includes the step of operating the battery charge level indicator in a second mode which is different than the first mode,

wherein the battery charge level indicator includes a first indicator portion and a second indicator portion, each representing a certain quantity of charge remaining in the battery, and further

wherein the first mode operating step includes the steps of;

indicating a first charge level of the first series by flashing the first indicator portion while causing the second indicator portion to remain inactivated; and

indicating a second charge level of the first series by flashing the second indicator portion while causing the first indicator portion to remain activated.

4. The method of claim 3, wherein the second mode operating step includes the steps of:

indicating a first charge level of the second series by causing the first indicator portion to remain activated while causing the second indicator portion to remain inactivated; and

indicating a second charge level of the second series by causing both the first indicator portion and the second indicator portion to remain activated.

9. The method of claim 4, wherein the first charge level of the first series is equal to the first charge level of the second series.

10. The method of claim 9, wherein the second charge level of the first series is equal to the second charge level of the second series.

5. A method for displaying charge levels of a battery adapted to power an electrical device, comprising the steps of:

providing a battery charge level indicator which includes a first indicator portion and a second indicator portion, each representing a certain quantity of charge remaining in the battery of the electrical device; and

operating the battery charge indicator in a first mode of operation which includes the steps of;

indicating a first charge level of the battery by flashing the first indicator portion while causing the second indictor portion to remain inactivated; and

indicating a second charge level of the battery by flashing the second indicator portion while causing the first indicator portion to remain activated.

6. The method of claim 5, further comprising the step of:

operating the battery charge indicator in a second mode of operation which includes the steps of;

indicating the first charge level of the battery by causing the first indicator portion to remain activated while causing the second indicator portion to remain inactivated; and

indicating the second charge level of the battery by causing both the first indicator portion and the second indicator portion to remain activated.