David Robert Leach

US Patent:

42508100, Feb 17, 1981

Filed:

Sep 25, 1979

Appl. No.:

6/078976

Inventors:

Raymond L. Fowler - Boulder CO
David W. Leach - Lexington KY
Lowell T. Sloan - Fort Lauderdale FL

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

B41F 2104
B41F 2712

US Classification:

101410

Abstract:

A clamp for holding a flexible sheet on a rotary carrier tightens the grip on, and pulls, the sheet upon rotation of the carrier, as a result of centrifugal forces generated on two weights attached to two cooperating arms within the clamp. The magnitude of the grip-tightening force is dependent upon the mass of a grip-tightening weight attached to the clamp. The magnitude of the sheet-pulling force is dependent upon the mass of a sheet-pulling weight attached to the clamp. The clamp faces are mounted for concurrent movement along the periphery of the carrier to prevent tearing or other damage to the sheet when it is pulled as the carrier is rotated.

US Patent:

20220303517, Sep 22, 2022

Filed:

Nov 10, 2021

Appl. No.:

17/523573

Inventors:

- Philadelphia PA, US
David LEACH - Centennial CO, US

International Classification:

H04N 9/825
G11B 27/32
H04N 7/18
H04N 9/802
H04N 9/87
G06V 20/52

Abstract:

Methods and systems for managing content items are described. A content item may be separated into components, such as chroma components, luminance components, and audio components. For more efficient management of the content, including for storage and delivery of the content, the separate components may be stored at different locations. For example, chroma components may be stored on a central server, while luminance and audio components are stored at other locations, such as edge servers, or vice versa, to accommodate network efficiency considerations. When content is delivered to a player, two or more separate streams carrying different content components may be delivered to the player.

US Patent:

20220295103, Sep 15, 2022

Filed:

Jan 25, 2022

Appl. No.:

17/583525

Inventors:

- Philadelphia PA, US
David Leach - Centennial CO, US

International Classification:

H04N 19/625
H04N 9/77

Abstract:

Systems, methods, and apparatuses are described for processing video. Encoded video data may be determined from uncompressed video data. A chrominance component for a portion of the encoded video data may be determined that references another portion of the encoded video data. A luma component of the portion of the encoded video data may be determined to correspond with the luma component of the corresponding portion of the uncompressed video data.

US Patent:

20230044867, Feb 9, 2023

Filed:

May 23, 2022

Appl. No.:

17/750620

Inventors:

- San Jose CA, US
Justin Riggert - Denver CO, US
David Leach - Centennial CO, US
Thomas Emerson Bach - Englewood CO, US
James Russell - Highlands Ranch CO, US
Edward David Monnerat - Parker CO, US
Todd Szuter - Glauchester MA, US
Bryan Thomas - Castle Rock CO, US

International Classification:

H04W 24/08
H04B 17/345

Abstract:

Access devices may receive signals over a network and calculate a frequency spectrum of the received signals. An analyzer system may collect the frequency spectrum data from multiple access devices, and based on the collected data, detect, identify, and locate sources of anomalies in a communication network.

US Patent:

20210297981, Sep 23, 2021

Filed:

Oct 19, 2020

Appl. No.:

17/073955

Inventors:

- Philadelphia PA, US
Edward David Monnerat - Parker CO, US
Jonathan Alan Leech - Denver CO, US
Nicholas Adam Pinckernell - Littleton CO, US
Andy Martushev - Castle Rock CO, US
Jasbir Rajpal - Parker CO, US
Scott Moody - Colorado Springs CO, US
Garey Hoffman - Denver CO, US
David B. Leach - Centennial CO, US
David O'hare - Greenwood Village CO, US

International Classification:

H04W 64/00
H04W 16/18
H04W 40/24
H04B 17/318
H04W 48/10

Abstract:

Methods, systems, computer-readable media, and apparatuses for providing service to access nodes are presented. In some embodiments, a computing device may generate a geographical coverage map comprising a plurality of wireless access nodes respectively at a plurality of geographic locations and a wireless coverage range for each wireless access node. The computing device may receive from at least one wireless access node of the plurality of wireless access nodes an indication that the at least one wireless access node detected a first wireless access node of the plurality of wireless access nodes. The computing device may refine a first coverage range of the first wireless access node based on a respective geographic location of the at least one wireless access node. In some embodiments, a first wireless access node may receive and forward join emergency mesh (JEM) messages to establish a wireless network.

US Patent:

20210136608, May 6, 2021

Filed:

Aug 20, 2020

Appl. No.:

16/998755

Inventors:

- San Jose CA, US
Justin Riggert - Denver CO, US
David Leach - Centennial CO, US
Thomas Emerson Bach - Englewood CO, US
James Russell - Highlands Ranch CO, US
Edward David Monnerat - Parker CO, US
Todd Szuter - Glauchester MA, US
Bryan Thomas - Castle Rock CO, US

International Classification:

H04W 24/08
H04B 17/345

Abstract:

Access devices may receive signals over a network and calculate a frequency spectrum of the received signals. An analyzer system may collect the frequency spectrum data from multiple access devices, and based on the collected data, detect, identify, and locate sources of anomalies in a communication network.

US Patent:

20200296346, Sep 17, 2020

Filed:

Mar 15, 2019

Appl. No.:

16/355323

Inventors:

- Philadelphia PA, US
David Leach - Centennial CO, US

International Classification:

H04N 9/825
H04N 9/802
H04N 9/87
G06K 9/00
G11B 27/32
H04N 7/18

Abstract:

Methods and systems for managing content items are described. A content item may be separated into components, such as chroma components, luminance components, and audio components. For more efficient management of the content, including for storage and delivery of the content, the separate components may be stored at different locations. For example, chroma components may be stored on a central server, while luminance and audio components are stored at other locations, such as edge servers, or vice versa, to accommodate network efficiency considerations. When content is delivered to a player, two or more separate streams carrying different content components may be delivered to the player.

US Patent:

20200045338, Feb 6, 2020

Filed:

Aug 1, 2018

Appl. No.:

16/051808

Inventors:

- Philadelphia PA, US
David Leach - Centennial CO, US

International Classification:

H04N 19/625
H04N 9/77

Abstract:

Systems, methods, and apparatuses are described for processing video. Encoded video data may be determined from uncompressed video data. A chrominance component for a portion of the encoded video data may be determined that references another portion of the encoded video data. A luma component of the portion of the encoded video data may be determined to correspond with the luma component of the corresponding portion of the uncompressed video data.