公开(公告)号：US10666542B1

公开(公告)日：2020-05-26

申请号：US16248473

申请日：2019-01-15

Applicant: LitePoint Corporation

Inventor： Christian Volf Olgaard ,  Ruizu Wang

IPC: H04B17/21 ,  H04L12/26 ,  H04B17/318 ,  H04B17/29 ,  H04B17/19 ,  H04B17/15

Abstract: System and method of testing performance of a data packet signal transceiver (DUT). Multiple DUT signals, with each having a respective DUT transmit power (RDTPn) received by the tester and corresponding to one (IDTPn) of multiple intended DUT transmit powers, for n=1, . . . , m, with a power equal to a minimum IDTP, maximum IDTP, or intermediate IDTP therebetween. Following association of each RDTPn with its IDTPn, a tester signal is sent having a trigger frame and tester transmit output power (TTOP). The trigger frame includes data corresponding to a reported tester transmit power (RTTP), and a desired signal strength (TRSS) of a DUT data packet signal to be received by the tester. A return DUT signal having a RDTPn is received, from which an IDTPn corresponding to the RDTPn is determined and compared to RTTP-TTOP+TRSS. Successive repetitions of such tester and DUT signals and IDTPn comparisons for multiple combinations of values of the TTOP, RTTP and DRSS enable testing reception performance of the DUT, including extracting RSSI measurements, with minimal signal interactions between tester and DUT.

公开(公告)号：US10404609B2

公开(公告)日：2019-09-03

申请号：US15842407

申请日：2017-12-14

Applicant: LitePoint Corporation

Inventor： Chen Cao ,  Christian Volf Olgaard ,  Ruizu Wang

IPC: H04L12/26 ,  H04L12/841 ,  H04L12/825

Abstract: A method for testing a data packet signal transceiver device under test (DUT). Following initial signal communications with a DUT, timing of further transmissions by the DUT may be effectively controlled by transmitting congestive communication channel signals to cause the DUT to detect apparent communication channel activity and in response thereto delay its own signal transmissions.

公开(公告)号：US10084554B2

公开(公告)日：2018-09-25

申请号：US14202104

申请日：2014-03-10

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Ruizu Wang ,  Guang Shi

IPC: H04B17/24 ,  H04B17/00

Abstract: System and method for controlling test flow of a radio frequency (RF) signal transceiver device under test (DUT) by inducing an interrupt via an internal signal interface or an external signal interface (with one example of the latter being a baseband signal interface for conveying audio signals). With exemplary embodiments, one or more DUT control signals are provided to or otherwise initiated within the DUT by inducing an interrupt, including inducement via use of the signal interface. With further exemplary embodiments, one or more test control signals are also provided to RF circuitry that responds by transmitting one or more RF receive signals for the DUT and receives from the DUT one or more RF transmit signals related to the one or more DUT control signals.

公开(公告)号：US09780893B2

公开(公告)日：2017-10-03

申请号：US14794138

申请日：2015-07-08

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard

IPC: H04B17/29 ,  H04B17/15

CPC classification number: H04B17/29 ,  H04B17/15

Abstract: Method for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) in which test data packets with varying power levels are transmitted to the DUT for testing the DUT while still ensuring that the DUT remains in receive (RX) mode and is prevented from searching for another data packet signal. Alternatively, in the event that the DUT becomes unresponsive due to searching for another data packet signal, multiple test data packets with sufficient signal power levels to ensure reception by the DUT are transmitted to the DUT to cause the DUT to cease searching for another data packet signal and return to RX mode.

公开(公告)号：US09749065B2

公开(公告)日：2017-08-29

申请号：US14852803

申请日：2015-09-14

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Ruizu Wang ,  Ke Liu ,  Fei Peng

IPC: H04B17/00 ,  H04W24/06 ,  H04B17/17 ,  H04B17/14

CPC classification number: H04B17/17 ,  H04B17/0085 ,  H04B17/14 ,  H04W24/06 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

Abstract: Method for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) including communicating via at least one of multiple available signal channels. Data packets exchanged between a tester and DUT as a normal part of a communication link initiation sequence are selectively exchanged and suppressed to enable testing of the DUT without requiring inclusion of special drivers within the DUT, special test software within the tester or establishment of a synchronized communication link between the tester and DUT. For example, in the case of a Bluetooth low energy transceiver, advertisement, scan request and scan response data packets can be used in such manner.

公开(公告)号：US09618577B2

公开(公告)日：2017-04-11

申请号：US14147159

申请日：2014-01-03

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard

IPC: G01R31/28 ,  G01R31/3177 ,  H04B10/00 ,  G01M11/00 ,  H04B10/073

CPC classification number: G01R31/3177 ,  G01M11/00 ,  H04B10/00 ,  H04B10/0731

Abstract: A system and method for testing a wireless data packet signal transceiver device under test (DUT) by using DUT control circuitry separate from a tester to access and execute test program instructions for controlling the DUT during testing with the tester. The test program instructions can be provided previously and stored for subsequent access and execution under control of the tester or an external control source, such a personal computer. Alternatively, the test program instructions can be provided by the tester or external control source immediately prior to testing, such as when beginning testing of a DUT with new or different performance characteristics or requirements. Accordingly, specialized testing of different DUTs while accounting for differences among various chipsets employed by the DUTs can be performed in coordination with a standard tester configuration without need for reconfiguring or reprogramming of the tester.

公开(公告)号：US09544787B2

公开(公告)日：2017-01-10

申请号：US14017041

申请日：2013-09-03

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  He Zhao

IPC: H04W24/08 ,  H04B17/00 ,  H04B17/21

CPC classification number: H04W24/08 ,  H04B17/0085 ,  H04B17/21

Abstract: A method of using tester data packet signals and control instructions for testing multiple data packet signal transceiver devices under test (DUTs). During mutually alternating time intervals, selected ones of which are substantially contemporaneous, multiple tester data packet signals and DUT control instructions are used for concurrent testing of multiple DUTs.

Abstract translation: 一种使用测试仪数据分组信号和控制指令测试多个被测数据分组信号收发器（DUT）的方法。 在相互交替的时间间隔期间，选定的时间间隔基本上同时进行，多个测试仪数据分组信号和DUT控制指令用于多个DUT的并行测试。

公开(公告)号：US09485038B2

公开(公告)日：2016-11-01

申请号：US14199607

申请日：2014-03-06

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard

IPC: H04B17/15 ,  G01R31/302 ,  H04B17/00 ,  H04B17/29 ,  G01R31/28

CPC classification number: H04B17/15 ,  G01R31/2822 ,  G01R31/3025 ,  H04B17/0085 ,  H04B17/29

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09319298B2

公开(公告)日：2016-04-19

申请号：US14082378

申请日：2013-11-18

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Ruizu Wang

IPC: H04L12/26 ,  H04W24/06

CPC classification number: H04L43/50 ,  H04W24/06

Abstract: A system and method for testing one or more wireless data packet signal transceiver devices under test (DUTs). Incoming data packets from a DUT are monitored to discern between data packets transmitted as part of a DUT calibration cycle or initial data packets being transmitted as the DUT transmitter circuitry settles at its new settings (e.g., transmit signal frequency or power), and later data packets transmitted following completion of the DUT calibration cycle or settling of the DUT transmitter circuitry. Following identification of these later data packets, the tester is so notified and begins the test procedure, e.g., capturing the data packets for analysis. Meanwhile, the tester has been allowed to remain in active use for other test purposes during DUT calibration cycles and settling intervals, thereby increasing testing efficiency and reducing overall test time.

Abstract translation: 一种用于测试被测试的一个或多个无线数据分组信号收发器设备（DUT）的系统和方法。 监视来自DUT的传入数据分组，以便在作为DUT校准周期的一部分发送的数据分组或当DUT发射机电路以其新设置（例如，发射信号频率或功率）稳定时）发送的初始数据分组之间进行辨别，以及稍后的数据 在DUT校准周期完成之后发送的数据包或DUT发射机电路的稳定。 在识别这些稍后的数据分组之后，测试者被通知并开始测试过程，例如捕获用于分析的数据分组。 同时，在DUT校准周期和稳定间隔期间，测试仪被允许保持主动用于其他测试目的，从而提高测试效率并降低整体测试时间。

公开(公告)号：US09160647B2

公开(公告)日：2015-10-13

申请号：US14084762

申请日：2013-11-20

Applicant: LITEPOINT CORPORATION

Inventor： Christian Volf Olgaard ,  Ruizu Wang

IPC: H04L12/26

CPC classification number: H04L43/50 ,  H04L43/0829

Abstract: A system and method for enabling testing a data link of a data packet signal transceiver device under test (DUT). A RX data packet signal originating from a reference device is conveyed for reception by a DUT, and a TX data packet signal originating from the DUT is conveyed for reception by the reference device. At least a portion of the RX data packet signal is conveyed with a signal attenuation and at least a portion of the TX data packet signal is conveyed with a different signal attenuation.

Abstract translation: 一种能够测试被测数据分组信号收发器设备（DUT）的数据链路的系统和方法。 来自参考设备的RX数据分组信号被传送以供DUT接收，并且从DUT发送的TX数据分组信号被传送以供参考设备接收。 RX数据分组信号的至少一部分以信号衰减传送，并且以不同的信号衰减传送TX数据分组信号的至少一部分。