# US 2025/0158740 A1 · Electronic device and associated control method

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- Number: US 2025/0158740 A1
- Document ID: US20250158740A1
- Status: Published application
- Kind: A1
- Application number: 18/669,490
- Filed: 2024-05-20
- Published: 2025-05-15
- Earliest claimed: 2023-11-10
- Assignees: Realtek Semiconductor Corp.
- Applicants: Realtek Semiconductor Corp.
- Inventors: Bixing Ye; Zuohui Peng
- Web page: https://patentgrep.com/patent/US20250158740A1

## CPC

- H04L 1/0061: {Error detection codes}
- H04L 1/0063: {Single parity check}
- H04L 1/0041: {Arrangements at the transmitter end}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

The present invention provides a control method of an electronic device, wherein the control method includes the steps of: generating a MAC frame; performing a specific encoding operation on a specific field of the MAC frame to generate a parity; using the parity to replace part of content of the specific field; and generating a packet according to the MAC frame for sending to another electronic device.

## Claims

### Claim 1

A control method of an electronic device, comprising:
generating a media access control (MAC) frame;
performing a specific encoding operation on a specific field of the MAC frame to generate a parity;
using the parity to replace part of content of the specific field; and
generating a packet according to the MAC frame for sending to another electronic device.

### Claim 2 (depends on 1)

The control method of claim 1, wherein the specific field is a duration/identity (duration/ID) field.

### Claim 3 (depends on 1)

The control method of claim 1, wherein the step of performing the specific encoding operation on the specific field of the MAC frame to generate the parity comprises:
dividing the specific field into a plurality of sections; and
performing an operation on a first part of the plurality of sections to generate the parity; and
the step of using the parity to replace the part of content of the specific field comprises:
using the parity to replace a second part of the plurality of sections.

### Claim 4 (depends on 3)

The control method of claim 3, wherein the specific field is a duration/ID field, the first part of the plurality of sections comprises a most significant bit (MSB), and the second part of the plurality of sections comprises a least significant bit (LSB).

### Claim 5 (depends on 3)

The control method of claim 3, wherein the step of performing the operation on the first part of the plurality of sections to generate the parity comprises:
performing exclusive OR (XOR) operations on the first part of the plurality of sections to generate the parity.

### Claim 6 (depends on 3)

The control method of claim 3, wherein the step of performing the operation on the first part of the plurality of sections to generate the parity comprises:
performing exclusive OR (XOR) operations on the first part of the plurality of sections and a specific pattern to generate the parity.

### Claim 7

An electronic device, comprising:
a processing circuit; and
a wireless communication module;
wherein the wireless communication module is configured to perform the steps of:
generating a media access control (MAC) frame;
performing a specific encoding operation on a specific field of the MAC frame to generate a parity;
using the parity to replace part of content of the specific field; and
generating a packet according to the MAC frame for sending to another electronic device.

### Claim 8

A control method of an electronic device, comprising:
receiving a packet from another electronic device;
determining whether a specific field of a media access control (MAC) frame of the packet is generated by a specific encoding method;
if the specific field of the MAC frame is generated by the specific encoding method, determining that a vendor of the another electronic device and a vendor of the wireless communication module in the electronic device are the same; and
if the specific field of the MAC frame is not generated by the specific encoding method, determining that the vendor of the another electronic device is different from the vendor of the wireless communication module in the electronic device.

### Claim 9 (depends on 8)

The control method of claim 8, wherein the specific field is a duration/identity (duration/ID) field.

### Claim 10 (depends on 8)

The control method of claim 8, wherein the step of determining whether the specific field of the MAC frame of the packet is generated by the specific encoding method comprises:
dividing the specific field into a plurality of sections;
performing an operation on a first part of the plurality of sections to generate a calculation result; and
determining whether the calculation result matches a second part of the plurality of sections to determine whether the specific field of the MAC frame is generated by the specific encoding method.

### Claim 11 (depends on 10)

The control method of claim 10, wherein the step of performing the operation on the first part of the plurality of sections to generate the calculation result comprises:
performing the operation on the first part of the plurality of sections and a specific pattern to generate the calculation result.

### Claim 12 (depends on 8)

The control method of claim 8, further comprising:
if the specific field of the MAC frame is generated by the specific encoding method, actively entering a relay mode to make the another electronic device to communicate with an access point through the electronic device.