专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11598803B1 System and method for compensating for power loss due to a radio frequency (RF) signal probe mismatch in conductive signal testing 有权
公开(公告)号：US11598803B1
公开(公告)日：2023-03-07
申请号：US17352553
申请日：2021-06-21
申请人： LitePoint Corporation
发明人： Chen Cao , Christian Volf Olgaard , Ray Wang
IPC分类号： G01R31/302 , H04B3/48
摘要： System and method for compensating for power loss due to a radio frequency (RF) signal probe mismatch in conductive RF signal testing of a RF data signal transceiver device under test (DUT). Sourcing the RF test signal with the RF vector signal transceiver at multiple test frequencies enables isolation of and compensation for power loss due to a mismatch between the RF signal probe and RF DUT connection based on predetermined losses of the RF signal path.

2. 发明授权

US10660030B2 System and method for controlling uses of wireless points of access during testing of radio frequency (RF) devices under test (DUTS) 有权
公开(公告)号：US10660030B2
公开(公告)日：2020-05-19
申请号：US15891876
申请日：2018-02-08
申请人： LitePoint Corporation
发明人： Prashanth Murthy , Steven L. Sheya
IPC分类号： H04W48/00 , H04W8/22 , H04W88/02 , H04W84/12
摘要： A system and method for controlling uses of respective tester points of access (PoAs) during wireless testing of one or more radio frequency (RF) signal transceiver devices under test (DUTs) in which one or more device identifiers are used to determine whether a DUT requesting access to one of multiple wireless PoAs is eligible to interact with the PoA receiving such request or, instead, eligible to interact with another one of the multiple PoAs and is to be redirected to such other PoA. Access by the requesting DUTs to respective PoAs may be predetermined so as to control loading of the PoAs during testing.

3. 发明授权

US10044451B2 Method for testing multiple wireless data packet signal transceivers using shared testing resources 有权
公开(公告)号：US10044451B2
公开(公告)日：2018-08-07
申请号：US14187926
申请日：2014-02-24
申请人： LITEPOINT CORPORATION
发明人： Jonathan Barry Hirst , Adam Martin Smith
IPC分类号： H04B17/15 , H04B17/11
摘要： Method for testing multiple signal transceiver devices under test (DUTs), such as data packet signal transceivers, with a shared DUT testing resource, such as a tester having a single vector signal generator (VSG) and a single vector signal analyzer (VSA). Requests by the DUTs for access to tester resources (e.g., to receive signals from the signal generator or provide signals to the signal analyzer) are prioritized based upon tester availability and whether the requesting DUT requires sole access or can share access to the tester. If the tester is unavailable, DUT requests are queued according to their respective priorities to await tester availability. As a result, access to shared tester resources can be managed dynamically to minimize test time while testing multiple DUTs concurrently.

4. 发明授权

US09794009B1 Method for testing a radio frequency (RF) data packet signal transceiver for proper implicit beamforming operation 有权
公开(公告)号：US09794009B1
公开(公告)日：2017-10-17
申请号：US15197966
申请日：2016-06-30
申请人： LITEPOINT CORPORATION
发明人： Christian Volf Olgaard , Roman Schilter , Minh-Chau Huynh , Carsten Andersen
IPC分类号： H04B17/29 , H04B17/15 , H04B7/06
CPC分类号： H04B17/29 , H04B7/0617 , H04B17/0085 , H04B17/15 , H04B17/318
摘要： Method for testing implicit beamforming operation of a radio frequency (RF) data packet signal transceiver device under test (DUT), including transmitting to the DUT combinations of a multidirectional (e.g., legacy) RF test signal and at least two unidirectional (e.g., beamformed) RF test signals with different signal directivity patterns, and monitoring signal strengths of signals received from the DUT in response to each signal. Signal directivity patterns can be controlled by transmitting multiple phase-controlled RF signals via separate arrays of multiple antenna elements to the DUT within a multipath RF signal environment, such as an electromagnetically shielded enclosure.

5. 发明授权

US09671445B2 System and method for testing radio frequency wireless signal transceivers using wireless test signals 有权
公开(公告)号：US09671445B2
公开(公告)日：2017-06-06
申请号：US13839162
申请日：2013-03-15
申请人： LITEPOINT CORPORATION
发明人： Minh-Chau Huynh , Dirk J. M. Walvis , Yinghui Li
IPC分类号： G01R29/10 , H04B17/11 , H04B17/21
CPC分类号： G01R29/10 , H04B17/11 , H04B17/21
摘要： A system and method to facilitate wireless testing of a radio frequency (RF) multiple-input, multiple-output (MIMO) signal transceiver device under test (DUT). With the DUT operating in a controlled electromagnetic environment, the tester transmits multiple test signals wirelessly to the DUT. Signal phases of the respective test signals transmitted by the tester are controlled in accordance with feedback signal data from the DUT. Magnitudes of the respective test signals can also be controlled in accordance with such feedback signal data, thereby enabling dynamic optimization of the wireless communication channel condition number k(H).

6. 发明授权

US09608894B2 Method for testing radio frequency (RF) data packet signal transceivers in a wireless signal environment 有权
公开(公告)号：US09608894B2
公开(公告)日：2017-03-28
申请号：US14730920
申请日：2015-06-04
申请人： LITEPOINT CORPORATION
发明人： Steve Lawrence Sheya , Soumyadeep Banerjee , Ramakrishna Yellapantula
IPC分类号： H04L12/26 , H04L29/06 , H04W52/14
CPC分类号： H04L43/50 , H04B17/0085 , H04L65/4076 , H04W52/146 , H04W52/247 , H04W52/50
摘要： Method for testing one or more of a group of radio frequency (RF) data packet signal transceiver devices under test (DUTs) with reduced signal interference from the remaining DUTs. A tester broadcasts a signal containing power control instructions about uplink signal power characteristics for communication with the tester. For example, for the LTE 3GPP standards, such characteristics could include power ramping step size, preamble initial received target power or maximum number of preamble transmissions for uplink signals transmitted from the DUTs. Following initiation of communication between the tester and one or more DUTs, the tester broadcasts a signal containing power control instructions to instruct the remaining DUTs to transmit any future signals with different uplink signal power characteristics. For the LTE 3GPP standards, such different characteristics could include reduced power ramping step size, reduced preamble initial received target power or reduced maximum number of preamble transmissions for uplink signals.

7. 发明授权

US09319912B2 System and method for concurrently testing multiple packet data signal transceivers capable of communicating via multiple radio access technologies 有权
标题翻译：同时测试能够通过多种无线电接入技术进行通信的多个分组数据信号收发机的系统和方法
公开(公告)号：US09319912B2
公开(公告)日：2016-04-19
申请号：US14146257
申请日：2014-01-02
申请人： LITEPOINT CORPORATION
发明人： Jonathan Barry Hirst , James L. Banzen , William L. Barker, Jr.
IPC分类号： H04W4/00 , H04W24/08 , H04L12/721 , H04L29/06 , H04B17/00
CPC分类号： H04W24/08 , H04B17/00 , H04B17/0085 , H04B17/14 , H04L45/70 , H04L69/28
摘要： System and method for using a shared packet data signal source to test multiple packet data signal transceiver devices under test (DUTs) capable of communicating using multiple radio access technologies (RATs). The signal source provides a packet data signal that includes a plurality of sequential signal segments having respective signal timing parameters and mutually distinct signal characteristics in accordance with the RATs. Based upon the signal timing parameters, at least a portion of each signal segment is routed to a respective one of multiple signal connections for conveyance to a corresponding DUT.
摘要翻译：用于使用共享分组数据信号源来测试能够使用多种无线电接入技术（RAT）进行通信的被测试的多个分组数据信号收发器设备（DUT）的系统和方法。信号源提供分组数据信号，该分组数据信号包括具有相应的信号定时参数和根据RAT的相互不同的信号特征的多个顺序信号段。基于信号定时参数，每个信号段的至少一部分被路由到多个信号连接中的相应一个以便传输到相应的DUT。

8. 发明申请

US20150253357A1 SYSTEM AND METHOD FOR ENABLING AUTOMATED TESTING OF WIRELESS DATA PACKET SIGNAL TRANSCEIVERS 有权
标题翻译：用于实现无线数据包信号收发器自动测试的系统和方法
公开(公告)号：US20150253357A1
公开(公告)日：2015-09-10
申请号：US14199607
申请日：2014-03-06
申请人： LITEPOINT CORPORATION
发明人： Christian Volf OLGAARD
IPC分类号： G01R1/18 , H04B17/15 , G01R31/28
CPC分类号： H04B17/15 , G01R31/2822 , G01R31/3025 , H04B17/0085 , H04B17/29
摘要： A system and method for enabling automated testing of wireless data packet signal transceiver devices under test (DUTs). One or more DUTs are enclosed inside respective chambers within a shielded enclosure providing electromagnetic shielding for its interior region. Each DUT is powered by an internal power source and its radio frequency (RF) signal port is connected to an external RF signal interface at an outer wall of the shielded enclosure. An anchor at an outer wall of the shielded enclosure enables mechanical engagement with and physical displacement of the shielded enclosure, thereby allowing DUTs to be manipulated using pick and place automation devices for engagement with and connection to automated test equipment. Such test equipment can be assembled into vertically stacked RF signal test stations with which shielded DUT enclosures are engaged by physically mating their respective power and RF signal ports using the pick and place automation device.
摘要翻译：一种用于实现被测试的无线数据分组信号收发器设备（DUT）的自动测试的系统和方法。将一个或多个DUT封装在屏蔽外壳内的各个室内，为其内部区域提供电磁屏蔽。每个DUT由内部电源供电，其射频（RF）信号端口连接到屏蔽外壳外壁上的外部RF信号接口。在屏蔽外壳的外壁上的锚固件能够与屏蔽外壳进行机械接合和物理位移，从而允许使用拾取和放置自动化设备来操纵DUT以与自动化测试设备接合和连接。这种测试设备可以组装成垂直堆叠的RF信号测试站，通过使用拾取和放置自动化设备物理地接合其相应的功率和RF信号端口，屏蔽DUT外壳被接合。

9. 发明授权

US09100182B2 Digital communications test system for multiple input, multiple output (MIMO) systems 有权
公开(公告)号：US09100182B2
公开(公告)日：2015-08-04
申请号：US13358222
申请日：2012-01-25
申请人： Christian Volf Olgaard , Ray Wang
发明人： Christian Volf Olgaard , Ray Wang
IPC分类号： G01R31/00 , H04L1/24 , H04L1/06 , H04B7/04
CPC分类号： H04L1/244 , H04B7/0413 , H04L1/06 , H04L1/243
摘要： A digital communications test system and method for testing a plurality of devices under test (DUTs) in which multiple sets of a single vector signal analyzer (VSA) and single vector signal generator (VSG) can be used together to perform error vector magnitude (EVM) measurements for one or more DUTs in parallel, including one or more of composite, switched and multiple input multiple output (MIMO) EVM measurements. This allows N pairs of a VSA and VSG to test N DUTs with N×N MIMO in substantially the sane time as a single VSA and VSG pair can test a single DUT, thereby allowing a substantial increase in testing throughput as compared to that possible with only a single VSA and VSG set.

10. 发明授权

US09077535B2 System and method for testing a radio frequency multiple-input multiple-output data packet transceiver while forcing fewer data streams 有权
标题翻译：用于测试射频多输入多输出数据包收发器的系统和方法，同时减少数据流
公开(公告)号：US09077535B2
公开(公告)日：2015-07-07
申请号：US13894817
申请日：2013-05-15
申请人： LITEPOINT CORPORATION
发明人： Christian Volf Olgaard
IPC分类号： H04L1/24 , H04B17/391 , H04B7/04
CPC分类号： H04L1/24 , H04B7/0413 , H04B17/3911 , H04L1/06 , H04L1/241
摘要： In accordance with the presently claimed invention, a system and method are provided for testing multiple-input, multiple-output wireless radiofrequency (RF) packet data signal transceivers while operating in such ways as to communicate their signals using various combinations or permutations of packet data streams without requiring termination or re-establishment of communication links following transitions from one combination or permutation of packet data streams to another.
摘要翻译：根据目前要求保护的发明，提供了一种系统和方法，用于测试多输入多输出无线射频（RF）分组数据信号收发器，同时以使用分组数据的各种组合或排列来传送其信号的方式操作流，而不需要在从一个组合或分组数据流的排列转换到另一个组合之后终止或重新建立通信链路。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式