Devices included in a wireless neural interface system

Devices included in a wireless neural interface system are disclosed. According to an embodiment, an internal device of a wireless neural interface system that performs communication through a human body channel may include: bio-electrodes including a first electrode, a second electrode, a third electrode, and a fourth electrode that are attached inside a human body; an oversampling converter configured to detect a biosignal on the basis of the first electrode and the second electrode, and output an oversampling signal by oversampling the biosignal; a wireless signal transmitter configured to encode the oversampling signal on the basis of a human body channel characteristic, and transmit the encoded oversampling signal to an external device, which is connected with the internal device through the human channel, through the third electrode; and a wireless power receiver configured to supply power to the oversampling converter and the wireless signal transmitter in response to a power signal received from the external device through the fourth electrode.

The abstract as published by the patent office, from US2023308191A1. It describes the invention; it is not a statement of what is protected.

• Interface and electrodes

  Electrodes and arrays

• Power

  Wireless power

• Telemetry

  Wireless telemetry · Data compression

• Stimulation

  Stimulation

What the filing appears to be about, read by published rules from its title, abstract and classification codes (A61B2560/0219, A61B5/24, A61B5/291, A61B5/293, A61B5/372). The claims define what a patent protects, and they are not read here.

Interface and electrodes

Everything downstream works with what the contacts pick up. Their number, size and distance from the neurons set the ceiling on the signal. The problem behind it: more contacts, closer to neurons, that still record after years in tissue that reacts to them.

Power

A wire through the skin is a standing infection risk, and a battery sets how long a device runs and how large it is. The problem behind it: enough power through the skin without heating it, and without a connector that breaks the skin.

Telemetry

Thousands of channels produce more data than a low-power radio can carry raw, so what is sent, and how, decides what the system can use. The problem behind it: high data rates at low power through tissue, reliably and securely.

Why the layer matters to the field, not a judgement of this filing. A patent family shows that protection was sought. It does not show that the technology was built, is used in a product, or works in people. The whole stack

One invention, published 6 times in 4 offices. Each publication opens in Espacenet.

• European Patent Officea route to several countries, not a countryEP4233725A130 Aug 2023
• South KoreaKR20230127534A1 Sep 2023KR102770935B124 Feb 2025 · grant
• JapanJP2023124805A6 Sep 2023
• United StatesUS2023308191A128 Sep 2023US12457046B228 Oct 2025 · grant

1. 25 Feb 2022First filingEarliest priority, at South Korea. The family is counted in this year.
2. 24 Oct 2022ApplicationFiled at European Patent Office.
3. 15 Nov 2022ApplicationFiled at United States.
4. 15 Nov 2022Owner recordedUnited States, on US2023308191A1: assignment; owner named: GBRAIN, INC., KOREA, REPUBLIC OF.
5. 27 Dec 2022ApplicationFiled at Japan.
6. 30 Aug 2023First publicationEP4233725A1, European Patent Office.
7. 30 Apr 2024Office recordSouth Korea, on KR20230127534A: notification of reason for refusal.
8. 30 Jul 2024Office recordJapan, on JP2023124805A: decision of refusal.
9. 31 Jul 2024Office recordEuropean Patent Office, on EP4233725A1: application deemed to be withdrawn.
10. 24 Feb 2025Grant publishedKR102770935B1, South Korea.
11. 28 Oct 2025Grant publishedUS12457046B2, United States.

Dates as the offices published them. Office records are in the offices' own words and are a selection: refusals, lapses and withdrawals, and records that name an owner. Each concerns one member of the family, not the family as a whole, and another member in the same office may stand. Whether a patent is in force today is not assessed.

Organisation

Gbrain · 13 families identified

• Bibliographic data, family members and office records: European Patent Office, Open Patent Services (the DOCDB and INPADOC databases), read 7 Oct 2026.
• The record itself, with its claims and description: US2023308191A1 in Espacenet
• Counted as a BCI patent family: uses the field's wording; classified A61B5/293 (invasive electrodes for brain recording); filed by 주식회사 지브레인, an organisation already in the graph; describes neural hardware or methods without naming the field; cites a family already accepted. How families are found and judged