IP Library Granted Patent US 12681540
Granted Patent B2
US 12681540 · App. 18/448,469 · Granted Jul 14, 2026

Electronic device comprising microphone module

Inventors: Hyunjoong Yoon (Suwon-si, KR); Wansang Ryu (Suwon-si, KR)
Assignee: Samsung Electronics Co., Ltd.
G06F1/1656G06F1/1607H04R1/02H05K5/03
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Quick Facts
Patent No.
US 12681540
App. No.
18/448,469
Granted
Jul 14, 2026
Kind
B2
Abstract

According to an embodiment of the present disclosure, an electronic device comprises: a microphone module including a microphone; a housing accommodating the microphone module and having at least one part surrounded by a protective cover configured to accommodate a digital pen, the housing comprising a microphone hole facing the protective cover; and a processor disposed inside the housing, wherein the processor may be configured to: determine a state of the digital pen mounted on the protective cover based on a sound generated by a protrusion of the protective cover contacting a groove of the digital pen, by the microphone module.

Claims (44)

1 . An electronic device comprising:

a microphone module comprising a microphone;

a housing comprising a front surface, a rear surface, and a side surface surrounding a space between the front surface and the rear surface, wherein the housing is configured to accommodate the microphone module and a display viewable through the front surface, and to be at least partially surrounded by a protection cover comprising an accommodation groove configured to accommodate a digital pen and a through hole extending from the accommodation groove toward the side surface of the housing, wherein the side surface of the housing comprises a microphone hole at least partially aligned with the through hole and facing the digital pen based on the digital pen being disposed in the accommodation groove; and

at least one processor comprising processing circuitry and disposed within the housing; and

memory storing instructions that, when executed by the at least one processor individually or collectively, cause the electronic device to:

determine, using the microphone module, a mounting state of the digital pen with respect to the protection cover based on sound generated by contact between a protrusion of the protection cover and a groove of the digital pen.

2 . The electronic device of claim 1 , wherein the protrusion extends from the accommodation groove.

3 . The electronic device of claim 1 , wherein the digital pen comprises a first groove structure comprising at least one first groove, a second groove structure comprising at least one second groove, and a support area located between the first groove structure and the second groove structure.

4 . The electronic device of claim 3 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:

determine that the digital pen is in a first state in which the digital pen is inserted into the protection cover based on acquiring a second sound signal generated due to contact between the second groove structure and the protrusion after a first sound signal generated due to contact between the first groove structure and the protrusion; and

determine that the digital pen is in a second state in which the digital pen is separated from the protection cover based on acquiring the first sound signal after the second sound signal.

5 . The electronic device of claim 4 , wherein a number of grooves of the at least one first groove is different from a number of grooves of the at least one second groove, and

the at least one processor, individually and/or collectively, is configured to distinguish the first sound signal and the second sound signal based on the number of grooves of the at least one first groove and the number of grooves of the at least one second groove.

6 . The electronic device of claim 3 , wherein the first groove structure comprises a plurality of first grooves arranged at a first interval, and

the second groove structure comprises a plurality of second grooves arranged at a second interval different from the first interval.

7 . The electronic device of claim 1 , wherein the through hole is disposed adjacent to the microphone hole.

8 . An electronic device comprising:

a housing comprising a front surface, a rear surface, and a side surface surrounding a space between the front surface and the rear surface, wherein the housing is configured to accommodate a microphone module including a microphone and a display viewable through the front surface;

a protection cover configured to protect the housing, the protection cover comprising an accommodation groove configured to accommodate a digital pen, a protrusion extending from the accommodation groove and configured to contact a groove of the digital pen, and a through hole extending from the accommodation groove toward the side surface of the housing, wherein the side surface of the housing comprises a microphone hole at least partially aligned with the through hole and facing the digital pen based on the digital pen being disposed in the accommodation groove; and

at least one processor comprising processing circuitry and disposed within the housing; and

memory storing instructions that, when executed by the at least one processor individually or collectively, cause the electronic device to:

determine a mounting state of the digital pen with respect to the protection cover based on sound generated by contact between the protrusion and the groove.

9 . The electronic device of claim 8 , wherein the digital pen comprises a first groove structure comprising at least one first groove, a second groove structure comprising at least one second groove, and a support area located between the first groove structure and the second groove structure.

10 . The electronic device of claim 9 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to:

determine that the digital pen is in a first state in which the digital pen is inserted into the protection cover based on acquiring a second sound signal generated due to contact between the second groove structure and the protrusion after a first sound signal generated due to contact between the first groove structure and the protrusion; and

determine that the digital pen is in a second state in which the digital pen is separated from the protection cover based on acquiring the first sound signal after the second sound signal.

11 . The electronic device of claim 10 , wherein a number of grooves of the at least one first groove is different from a number of grooves of the at least one second groove.

12 . The electronic device of claim 11 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to distinguish the first sound signal and the second sound signal based on the number of grooves of the at least one first groove and the number of grooves of the at least one second groove.

13 . The electronic device of claim 9 , wherein the first groove structure comprises a plurality of first grooves arranged at a first interval, and

the second groove structure comprises a plurality of second grooves arranged at a second interval different from the first interval.

14 . The electronic device of claim 8 , wherein the protection cover comprises thermoplastic polyurethane.

15 . The electronic device of claim 8 , wherein the accommodation groove in the protection cover comprises a first inner surface facing the digital pen, and

the first inner surface is spaced apart from at least a portion of the digital pen in a state in which the digital pen is inserted into the protection cover.

16 . The electronic device of claim 8 , wherein the electronic device further comprises the microphone module configured to acquire sound generated by contact between the digital pen and the protection cover.

17 . The electronic device of claim 8 , wherein the through hole is disposed adjacent to the microphone hole.

18 . The electronic device of claim 8 , wherein the protrusion of the protection cover is provided between the through hole and a portion of the accommodation groove configured to receive a tip of the digital pen.

19 . A protection cover configured to protect a housing of an electronic device, the housing comprising a front surface, a rear surface, and a side surface surrounding a space between the front surface and the rear surface, the protection cover comprising:

an accommodation groove defining a space configured to accommodate a digital pen,

a protrusion protruding from the accommodation groove and configured to contact a groove on the digital pen,

a first through hole extending from the accommodation groove toward the side surface of the housing, facing the digital pen based on the digital pen being disposed in the accommodation groove, and configured to transmit sound generated based on contact between the protrusion and the digital pen to a microphone disposed in the housing of the electronic device through the first through hole and a microphone hole in the side surface of the housing, at least partially aligned with the first through hole, and facing the digital pen based on the digital pen being disposed in the accommodation groove, and

a second through hole extending from the accommodation groove in a direction away from the side surface of the housing and at least partially aligned with the first through hole,

wherein the accommodation groove is located between the first through hole and the second through hole, and

wherein the space of the accommodation groove is acoustically coupled to a microphone hole of the electronic device configured to guide an external sound to a microphone inside the electronic device.

20 . The protection cover of claim 19 , wherein the digital pen comprises a first groove structure comprising at least one first groove, a second groove structure comprising at least one second groove, and a support area located between the first groove structure and the second groove structure.