# US 12,216,605 B2 · Electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,216,605 B2 - Document ID: US12216605B2 - Status: Granted - Kind: B2 - Application number: 18/112,906 - Filed: 2023-02-22 - Published: 2023-10-12 - Granted: 2025-02-04 - Earliest claimed: 2022-03-24 - Assignees: Harman International Industries, Incorporated - Applicants: Harman International Industries, Incorporated - Inventors: Yanmei Han; Ebing Shen; Tieyi Liang - Web page: https://patentgrep.com/patent/US12216605B2 ## CPC - G06F 13/4081: {Live connection to bus, e.g. hot-plugging (current or voltage limitation during live insertion H02H9/004)} - G06K 19/0701: {at least one of the integrated circuit chips comprising an arrangement for power management} - G06F 1/266: {Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips} - G06K 7/0013: {by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers (connectors in general H01R13/00; connectors for SIM cards used in mobile phones or the like H04B1/3816)} - G06K 7/0082: {comprising an arrangement for protection against electrostatic discharge, e.g. by grounding part of the conductive housing} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS ## Abstract Disclosed is an electronic device, including: a switch element; and a memory card slot suitable for receiving a memory card. The memory card slot includes a power supply pin and a detection pin, and the power supply pin of the memory card slot being connected to a power supply through the switch element. The memory card slot has a first configuration where a memory card is received and a second configuration where there is no memory card. In the first configuration of the memory card slot, the detection pin of the memory card slot is in a grounded state, and in the second configuration of the memory card slot, the detection pin of the memory card slot is in a non-grounded state. The detection pin of the memory card slot is connected to the switch element and the detection pin in the grounded state can turn on the switch element. ## Claims ### Claim 1 An electronic device comprising: a switch element; and a memory card slot suitable to receive a memory card, the memory card slot comprising a power supply pin and a detection pin, and the power supply pin of the memory card slot being connected to a power supply through the switch element, wherein the memory card slot includes a first configuration in which a memory card is received and a second configuration in which there is no memory card; in the first configuration of the memory card slot, the detection pin of the memory card slot is in a grounded state, and in the second configuration of the memory card slot, the detection pin of the memory card slot is in a non-grounded state, wherein the detection pin of the memory card slot is connected to the switch element and the detection pin in the grounded state turns on the switch element, wherein the detection pin in the non-grounded state turns off the switch element; wherein, in the on state of the switch element, the power supply pin of the memory card slot is electrically connected to the power supply; wherein, in the off state of the switch element, the power supply pin of the memory card slot is not electrically connected to the power supply; wherein the switch element has a first end, a second end, and a third end; the first end of the switch element is electrically connected to the power supply; the second end of the switch element is electrically connected to the power supply pin of the memory card slot; and the third end of the switch element is electrically connected to the detection pin of the memory card slot; wherein in the on state of the switch element, the first end of the switch element is electrically connected to the second end, and in the off state of the switch element, the first end of the switch element is not electrically connected to the second end; wherein, responsive to the third end of the switch element being at a low level, the switch element is in the on state, and responsive to the third end of the switch element being at a high level, the switch element is in the off state; wherein the electronic device further comprises a controller connected with the memory card slot and capable of reading data from the memory card in the memory card slot; and wherein the controller comprises a detection and reset pin; the detection and reset pin is connected to the third end of the switch element; the controller comprises a normal reading state to read data from the memory card in the memory card slot, and an abnormal reading state of not reading data from the memory card in the memory card slot; and in the abnormal reading state, the controller applies a high level to the third end of the switch element through the detection and reset pin. ### Claim 2 (depends on 1) The electronic device according to claim 1, wherein the power supply is electrically connected to the third end of the switch element through a resistor. ### Claim 3 (depends on 1) The electronic device according to claim 1, wherein the switch element is a field effect transistor (FET); the first end of the switch element is a source; the second end is a drain; and the third end is a gate. ### Claim 4 (depends on 1) The electronic device according to claim 1, wherein the controller is connected to a plurality of pins of the memory card slot, and is used to communicate with the memory card in the memory card slot through the plurality of pins; wherein the electronic device also comprises a plurality of electrostatic discharge (ESD) elements; and wherein at least one of each of the plurality of pins of the memory card slot is grounded through one of the ESD elements and the power supply pin of the memory card slot is grounded through one of the ESD elements. ### Claim 5 (depends on 1) The electronic device according to claim 1, wherein the detection pin of the memory card slot is grounded through a switch; wherein in the first configuration of the memory card slot, the memory card in the memory card slot positions the switch at an on position; and wherein in the second configuration of the memory card slot, the switch is positioned at an off position. ### Claim 6 (depends on 1) The electronic device according to claim 1, wherein the memory card slot is a slot suitable for receiving a TransFlash (TF) cards or a Secure Digital (SD) card. ### Claim 7 (depends on 1) The electronic device according to claim 1, wherein the electronic device is a portable audio player or video player. ### Claim 8 An electronic device comprising: a switch element; and a memory card slot receiving a memory card, the memory card slot comprising a power supply pin and a detection pin, and the power supply pin of the memory card slot being connected to a power supply through the switch element, wherein the memory card slot includes a first configuration in which a memory card is received and a second configuration in which there is no memory card; in the first configuration of the memory card slot, the detection pin of the memory card slot is in a grounded state, and in the second configuration of the memory card slot, the detection pin of the memory card slot is in a non-grounded state, wherein the detection pin in the non-grounded state turns off the switch element; wherein, in the on state of the switch element, the power supply pin of the memory card slot is electrically connected to the power supply; wherein, in the off state of the switch element, the power supply pin of the memory card slot is not electrically connected to the power supply; wherein the switch element has a first end, a second end, and a third end; the first end of the switch element is electrically connected to the power supply; the second end of the switch element is electrically connected to the power supply pin of the memory card slot; and the third end of the switch element is electrically connected to the detection pin of the memory card slot; wherein in the on state of the switch element, the first end of the switch element is electrically connected to the second end, and in the off state of the switch element, the first end of the switch element is not electrically connected to the second end; wherein, responsive to the third end of the switch element being at a low level, the switch element is in the on state, and responsive to the third end of the switch element being at a high level, the switch element is in the off state; wherein the electronic device further comprises a controller connected with the memory card slot and capable of reading data from the memory card in the memory card slot; and wherein the controller comprises a detection and reset pin; the detection and reset pin is connected to the third end of the switch element; the controller comprises a normal reading state to read data from the memory card in the memory card slot, and an abnormal reading state of not reading data from the memory card in the memory card slot; and in the abnormal reading state, the controller applies a high level to the third end of the switch element through the detection and reset pin. ### Claim 9 (depends on 8) The electronic device according to claim 8 wherein the power supply is electrically connected to the third end of the switch element through a resistor. ### Claim 10 (depends on 8) The electronic device according to claim 8 wherein the switch element is a field effect transistor (FET); the first end of the switch element is a source; the second end is a drain; and the third end is a gate. ### Claim 11 (depends on 8) The electronic device according to claim 8, wherein the controller is connected to a plurality of pins of the memory card slot, and is used to communicate with the memory card in the memory card slot through the plurality of pins; wherein the electronic device also comprises a plurality of electrostatic discharge (ESD) elements; and wherein at least one of each of the plurality of pins of the memory card slot is grounded through one of the ESD elements or the power supply pin of the memory card slot is grounded through one of the ESD elements. ### Claim 12 (depends on 8) The electronic device according to claim 8, wherein the detection pin of the memory card slot is grounded through a switch; wherein in the first configuration of the memory card slot, the memory card in the memory card slot positions the switch at an on position; and wherein in the second configuration of the memory card slot, the switch is positioned at an off position. ### Claim 13 (depends on 8) The electronic device according to claim 8, wherein the memory card slot is a slot suitable for receiving a TransFlash (TF) cards or a Secure Digital (SD) card. ### Claim 14 An electronic device comprising: a switch element; and a memory card slot suitable to receive a memory card, the memory card slot comprising a power supply pin and a detection pin, and the power supply pin of the memory card slot being connected to a power supply through the switch element, wherein the memory card slot includes a first configuration in which a memory card is received and a second configuration in which there is no memory card; in the first configuration of the memory card slot, the detection pin of the memory card slot is in a grounded state, and in the second configuration of the memory card slot, the detection pin of the memory card slot is in a non-grounded state, wherein the detection pin of the memory card slot is connected to the switch element and the detection pin in the grounded state turns on the switch element, wherein, in the on state of the switch element, the power supply pin of the memory card slot is electrically connected to the power supply; wherein, in the off state of the switch element, the power supply pin of the memory card slot is not electrically connected to the power supply; wherein the switch element has a first end, a second end, and a third end; the first end of the switch element is electrically connected to the power supply; the second end of the switch element is electrically connected to the power supply pin of the memory card slot; and the third end of the switch element is electrically connected to the detection pin of the memory card slot; wherein in the on state of the switch element, the first end of the switch element is electrically connected to the second end, and in the off state of the switch element, the first end of the switch element is not electrically connected to the second end; wherein, responsive to the third end of the switch element being at a low level, the switch element is in the on state, and responsive to the third end of the switch element being at a high level, the switch element is in the off state; wherein the electronic device further comprises a controller connected with the memory card slot and capable of reading data from the memory card in the memory card slot; and wherein the controller comprises a detection and reset pin; the detection and reset pin is connected to the third end of the switch element; the controller comprises a normal reading state to read data from the memory card in the memory card slot, and an abnormal reading state of not reading data from the memory card in the memory card slot; and in the abnormal reading state, the controller applies a high level to the third end of the switch element through the detection and reset pin.