Patents
US 12659051 B2: Method and apparatus for multiple-input multiple-output (MIMO) testing user equipment (UE)
- Granted
- 2026-06-16
- Filed
- 2023-09-28 application 18374053
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A system, device and method for optimization of a radiated transmission matrix by the selecting probe antennae and applying a compensation network in the test system are described. Among other benefits, the anechoic chamber in which the DUT is disposed is comparatively small and inexpensive. The time-consuming process of inverse matrix tuning or isolation level checking that plagues known systems, device and methods of testing DUT is substantially avoided. Because of small size of shield box and probe antenna selection algorithm, low path loss and acceptable power in testing can be realized.
Source: PTBLXML, file of 2026-06-16 (ipgb20260616.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| KEYSIGHT TECHNOLOGIES, INC. 599 patents | US company or organization | Santa Rosa, CA | KEYSIGHT TECHNOLOGIES, INC Federal lobbying client EXACT high confidence: identical full name and state KEYSIGHT TECHNOLOGIES, INC. SEC filer EXACT medium confidence: identical full name, one of each nationally | PTBLXML, file of 2026-06-16 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Huaizhi Yang | Beijing, CN | PTBLXML, file of 2026-06-16 | ||
| Ya Jing | Beijing, CN | 23 | PTBLXML, file of 2026-06-16 | |
| Jin-Ming Zhao | Beijing, CN | PTBLXML, file of 2026-06-16 | ||
| Zi Quan Bai | Beijing, CN | 3 | PTBLXML, file of 2026-06-16 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H04B | Transmission | H04B17/0085 | PTBLXML, file of 2026-06-16 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2023-09-28 | Assignment Assignment of assignor's interest | YANG, HUAIZHI signed 2023-01-30 JING, YA signed 2023-01-30 ZHAO, JIN-MING signed 2023-01-30 BAI, ZI QUAN signed 2023-01-30 | KEYSIGHT TECHNOLOGIES, INC. SANTA ROSA, CA | 65059/523 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.