公开(公告)号：US20230308261A1

公开(公告)日：2023-09-28

申请号：US17656685

申请日：2022-03-28

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Eric J. Campbell ,  Christopher Steffen ,  Chad Albertson ,  Nicholas Ollerich

IPC: H04L9/08 ,  H04L9/14 ,  G06F21/72

CPC classification number: H04L9/0825 ,  H04L9/0866 ,  H04L9/0872 ,  H04L9/14 ,  G06F21/72

Abstract: A system and method to tie a removable component to a host device. A first pairing key is stored into a security module on a host device such as a server rack. A removable component is inserted into the server rack for the first time. In response to this first insertion the first pairing key is burned into the removable component using a plurality of physically modifiable internal components. The server rack/security module receives a request form the removable component to operate on the server rack, the request includes a burned in pairing key. The security module compares the received pairing key with the first pairing key and permits operation of the removable component in response to a match between the received pairing key and the first pairing key.

公开(公告)号：US20230055935A1

公开(公告)日：2023-02-23

申请号：US17405173

申请日：2021-08-18

Applicant: International Business Machines Corporation

Inventor： Nathan Ross Blanchard ,  VENKAT HARISH NAMMI ,  DEREJE YILMA ,  Chad Andrew Marquart ,  Glen A. Wiedemeier ,  JEFFREY KWABENA OKYERE ,  Erik English ,  Christopher Steffen ,  Vikram B. Raj ,  Michael Wayne Harper

IPC: G01R31/3177 ,  G01R31/317 ,  G06F1/08

Abstract: Aspects of the invention include a phase rotator, that is located at a built-in self-test (BIST) path of a receiver, receiving a clock signal from an on-chip clock. The phase rotator shifts the phases of the clock signal. The phase rotator transmits the shifted clock signal to a binary sequence generator, that is located at the receiver. The binary sequence generator outputs a binary sequence, where the binary sequence generator is driven by the shifted clock signal.

公开(公告)号：US20220006796A1

公开(公告)日：2022-01-06

申请号：US16919489

申请日：2020-07-02

Applicant: International Business Machines Corporation

Inventor： Christopher Steffen ,  Chad Albertson ,  Nicholas Ollerich ,  Eric J. Campbell

IPC: H04L29/06 ,  H04L9/08

Abstract: A system and method for pairing two devices for secure communications. A user selects a first device to pair with a second device. The first and second devices have the ability to securely communicate with each other through the use of encrypted communications. An encryption key is written to the first device and then burned into the encryption module on the first device. A corresponding decryption key is written to the second device and then is burned into the decryption module of the second device.

公开(公告)号：US20210072296A1

公开(公告)日：2021-03-11

申请号：US16564604

申请日：2019-09-09

Applicant: International Business Machines Corporation

Inventor： Eric J. Campbell ,  Christopher Steffen ,  CHAD ALBERTSON ,  NICHOLAS OLLERICH

IPC: G01R27/06

Abstract: Provided is a method for collecting sensor data using time-domain reflectometry (TDR). A master device transmits a TDR signal to a first sensor. A reflected signal is received in response to the transmitted TDR signal. The reflected signal is analyzed to determine an impedance of the first sensor. Based on the impedance of the first sensor, a sensor value for the first sensor is determined.

公开(公告)号：US20240163266A1

公开(公告)日：2024-05-16

申请号：US18539956

申请日：2023-12-14

Applicant: International Business Machines Corporation

Inventor： Christopher Steffen ,  Chad Albertson ,  Nicholas Ollerich ,  Eric J. Campbell

IPC: H04L9/40 ,  H04L9/08

CPC classification number: H04L63/0442 ,  H04L9/0866 ,  H04L9/0897 ,  H04L63/0876

Abstract: A system and method for pairing two devices for secure communications. A user selects a first device to pair with a second device. The first and second devices have the ability to securely communicate with each other through the use of encrypted communications. An encryption key is written to the first device and then burned into the encryption module on the first device. A third device is selected to pair with the first device. A second encryption key is written to the first device and then burned into the encryption module.

公开(公告)号：US11729472B2

公开(公告)日：2023-08-15

申请号：US16701306

申请日：2019-12-03

Applicant: International Business Machines Corporation

Inventor： Eric J. Campbell ,  Chad Albertson ,  Christopher Steffen ,  Nicholas Ollerich

IPC: H04N21/475 ,  H04L9/32 ,  H04N21/41

CPC classification number: H04N21/4753 ,  H04L9/3213 ,  H04L9/3234 ,  H04N21/4126

Abstract: A system and method for providing content to a user outside of a home region. A portable device displays content to a user through a network connection. A home content provider provides content to the portable device from the home region. Some of the content provided is region restricted content. A location verifier determines that the portable device and the user are both physically located within the home region. The location verifier issues to the user a location token when the user and the portable device are in the home region. A token verifier verifies the location token when the user requests the region restricted content outside of the home region. The token verifier further instructs the home content provider to provide region restricted content to the user when the user has the location token.

公开(公告)号：US20210168455A1

公开(公告)日：2021-06-03

申请号：US16701306

申请日：2019-12-03

Applicant: International Business Machines Corporation

Inventor： Eric J. Campbell ,  Chad Albertson ,  Christopher Steffen ,  Nicholas Ollerich

IPC: H04N21/475 ,  H04N21/41 ,  H04L9/32

Abstract: A system and method for providing content to a user outside of a home region. A portable device displays content to a user through a network connection. A home content provider provides content to the portable device from the home region. Some of the content provided is region restricted content. A location verifier determines that the portable device and the user are both physically located within the home region. The location verifier issues to the user a location token when the user and the portable device are in the home region. A token verifier verifies the location token when the user requests the region restricted content outside of the home region. The token verifier further instructs the home content provider to provide region restricted content to the user when the user has the location token.

公开(公告)号：US20210085212A1

公开(公告)日：2021-03-25

申请号：US16577738

申请日：2019-09-20

Applicant: International Business Machines Corporation

Inventor： Sarah K. Czaplewski-Campbell ,  Eric J. Campbell ,  Jennifer I. Bennett ,  Elin F. LaBreck ,  Christopher Steffen

IPC: A61B5/06 ,  A61B5/00 ,  A61B5/053 ,  A61M5/31

Abstract: A device includes a syringe, which has a tip, plunger, and barrel containing a fluid. The device also includes a needle electrode coupled to the tip of the syringe, a release component, and a control component configured to receive electrical measurements made by the needle electrode, determine impedance values from the electrical measurements, and identify a target tissue based on the impedance values. In response to the identification, the control component generates instructions to reposition a release component. A method includes receiving electrical measurements from a needle electrode, determining impedance values based on the electrical measurements. A target tissue is identified based on the impedance values, and a release component is repositioned in response. An article of manufacture includes a needle electrode and a microprocessor configured to receive electrical measurements, determine impedance values, identify a target tissue based on the impedance values, and generate instructions to reposition a release component.

公开(公告)号：US20190020565A1

公开(公告)日：2019-01-17

申请号：US15651346

申请日：2017-07-17

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Luiz C. Alves ,  Patrick J. Meaney ,  Christopher N. Oelsner ,  Gary A. Peterson ,  Christopher Steffen

IPC: H04L12/26 ,  G06F13/42 ,  G06F13/40 ,  H04L12/24

Abstract: A technique relates to dynamic time-domain reflectometry (TDR). A machine spares a bad lane in a bus. The bad lane is taken offline. TDR is dynamically executed on the bad lane while the bus is still in operation. A defect is isolated using results of the TDR.

公开(公告)号：US12231536B2

公开(公告)日：2025-02-18

申请号：US17656680

申请日：2022-03-28

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Eric J. Campbell ,  Christopher Steffen ,  Chad Albertson ,  Nicholas Ollerich

IPC: H04L9/08 ,  H04L9/30 ,  H04L9/40

Abstract: A system and method of securely controlling a device from another device. The user of the device attempts to modify the device in some way. In response to the attempted modification a request is generated and sent to a controlling device. The request includes information related to the desired modification. The controlling device analyzes the request and a determination on how to respond to the request is made. This response is encrypted at the controlling device and transmitted to the device. The device then decrypts the response and implements the indicated response to the request. The encryption and decryption keys are burned into the corresponding devices such that information needed to decrypt the response is not transmitted to the device.