Powered case for portable electronic device
First Claim
1. A protective cover for an electronic device having a rechargeable battery and an interactive control panel, the protective cover comprising:
- a protective shell having a front, a back, and at least two sides, the protective shell including a cavity defined by the front, the back, and the at least two sides, the cavity at least partially enclosing the electronic device when the electronic device is installed in the protective shell, the protective shell including an opening on the front of the protective shell for accessing the interactive control panel of the installed electronic device;
an external electrical interface accessible at an outside surface of one of the at least two sides of the protective shell, the external electrical interface for receiving electrical power from an external power source;
an internal electrical interface accessible inside the cavity, the internal electrical interface for connecting to the electronic device when the electronic device is installed in the protective shell;
one or more rechargeable batteries contained in the protective shell;
a user input device accessible on the outside surface of the protective shell; and
electrical circuitry electrically interconnected to the external electrical interface, the internal electrical interface, the one or more rechargeable batteries, and the user input device, the electrical circuitry having a charging mode and a non-charging mode, the electrical circuitry configured to transition from the non-charging mode to the charging mode in response to an input received at the user input device, the electrical circuitry further configured for;
transferring stored electrical power of the one or more rechargeable batteries of the protective cover to the installed electronic device through the internal electrical interface if the electrical circuitry is in the charging mode and if the protective case is not receiving the electrical power from the external power source through the external electrical interface, the transferring of the stored electrical power of the one or more rechargeable batteries limited by an amount of current the installed electronic device will consume;
transitioning from the charging mode to the non-charging mode in response to the amount of the current the installed electronic device will consume decreasing below a threshold value; and
transferring the electrical power received from the external power source to the one or more rechargeable batteries of the protective cover and to the installed electronic device if the protective case is receiving the electrical power from the external power source.
6 Assignments
0 Petitions
Accused Products
Abstract
A case for an electronic device includes a front member having an aperture for interacting with a touchscreen of the electronic device and a back member that includes a rechargeable power cell, a switched electrical interface, an electromechanical switch, and current monitoring circuitry. The switched electrical interface has an enabled mode in which electrical current is permitted to flow from the rechargeable power cell of the case to the installed electronic device and a disabled mode in which the electrical current is not permitted to flow to the installed electronic device. The electromechanical switch transitions the switched electrical interface from the disabled mode to the enabled mode. The current monitoring circuitry automatically toggles the switched electrical interface from the enabled mode to the disabled mode when the magnitude of the electrical current flowing from the case to the electronic device decreases to a predetermined value.
124 Citations
29 Claims
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1. A protective cover for an electronic device having a rechargeable battery and an interactive control panel, the protective cover comprising:
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a protective shell having a front, a back, and at least two sides, the protective shell including a cavity defined by the front, the back, and the at least two sides, the cavity at least partially enclosing the electronic device when the electronic device is installed in the protective shell, the protective shell including an opening on the front of the protective shell for accessing the interactive control panel of the installed electronic device; an external electrical interface accessible at an outside surface of one of the at least two sides of the protective shell, the external electrical interface for receiving electrical power from an external power source; an internal electrical interface accessible inside the cavity, the internal electrical interface for connecting to the electronic device when the electronic device is installed in the protective shell; one or more rechargeable batteries contained in the protective shell; a user input device accessible on the outside surface of the protective shell; and electrical circuitry electrically interconnected to the external electrical interface, the internal electrical interface, the one or more rechargeable batteries, and the user input device, the electrical circuitry having a charging mode and a non-charging mode, the electrical circuitry configured to transition from the non-charging mode to the charging mode in response to an input received at the user input device, the electrical circuitry further configured for; transferring stored electrical power of the one or more rechargeable batteries of the protective cover to the installed electronic device through the internal electrical interface if the electrical circuitry is in the charging mode and if the protective case is not receiving the electrical power from the external power source through the external electrical interface, the transferring of the stored electrical power of the one or more rechargeable batteries limited by an amount of current the installed electronic device will consume; transitioning from the charging mode to the non-charging mode in response to the amount of the current the installed electronic device will consume decreasing below a threshold value; and transferring the electrical power received from the external power source to the one or more rechargeable batteries of the protective cover and to the installed electronic device if the protective case is receiving the electrical power from the external power source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A case for an electronic device having a rechargeable battery and a touchscreen, the case comprising:
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a front member including an aperture for interacting with the touchscreen of the electronic device when the electronic device is installed in the case; and a back member attachable to the front member with one or more clasping mechanisms to at least partially enclose the electronic device in the case, the back member comprising; a rechargeable power cell; a switched electrical interface electrically interconnected to the electronic device when the electronic device is installed in the case, the switched electrical interface for providing electrical current from the rechargeable power cell of the case to the installed electronic device, the switched electrical interface switchable between an enabled mode and a disabled mode, the enabled mode permitting the electrical current to flow from the rechargeable power cell of the case through the switched electrical interface to the installed electronic device, the disabled mode not permitting the electrical current to flow from the rechargeable power cell through the switched electrical interface to the installed electronic device; an electromechanical switch that can be actuated from an outside surface of the case, wherein the case transitions the switched electrical interface from the disabled mode to the enabled mode in response to actuation of the electromechanical switch; and monitoring circuitry for; monitoring a magnitude of the electrical current flowing from the rechargeable power cell of the case through the switched electrical interface to the installed electronic device in the enabled mode and for automatically toggling the switched electrical interface from the enabled mode to the disabled mode when the magnitude of the electrical current decreases at least to a predetermined value, the predetermined value associated with an amount of externally supplied current the installed electronic device will consume when the rechargeable battery of the electronic device is substantially charged; and monitoring a current charge level of the rechargeable power cell of the case and automatically toggling the switched electrical interface from the enabled mode to the disabled mode when the current charge level of the rechargeable power cell decreases below a threshold value. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A protective cover for a portable computing device, the protective cover comprising:
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a protective shell that at least partially encloses the portable computing device; an external electrical connector accessible on an outside surface of the protective shell, the external electrical connector for receiving electrical power from an external power source; an internal electrical connector on an inside surface of the protective shell, the internal electrical connector for electrically interfacing with the installed portable computing device; a rechargeable power storage device housed in the protective shell and removable from the protective shell; a button accessible on the outside surface of the protective shell; and control circuitry electrically interfaced to the external electrical connector, the internal electrical connector, the rechargeable power storage device, and the button, the control circuitry having at least a charging mode and a standby mode, the control circuitry adapted to; if the protective cover is receiving the electrical power from the external power source, allocate the received electrical power among the rechargeable power storage device of the protective cover and the portable computing device, wherein a first portion of the received electrical power is transferred to the portable computing device and a second portion of the received electrical power is transferred to the rechargeable power storage device to recharge the rechargeable power storage device; if the protective cover is not receiving the electrical power from the external power source and if the control circuitry is in the charging mode, transfer stored electrical power from the rechargeable power storage device of the protective cover to the installed portable computing device through the internal electrical connector, the transfer limited by an amount of current the installed portable computing device will consume, the control circuitry further adapted to transition from the charging mode to the standby mode when the amount of the current the portable computing device will consume drops below a threshold amount of electrical current the portable computing device consumes when the portable computing device is fully charged; and if the protective cover is not receiving the electrical power from the external power source and if the control circuitry is in the standby mode, transition from the standby mode to the charging mode in response to detecting actuation of the button. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification