David T Walls

US Patent:

59433388, Aug 24, 1999

Filed:

Aug 19, 1996

Appl. No.:

8/699564

Inventors:

Michael B. Duclos - Stow MA
William C. Mallard - Nashua NH
David X. Walls - Westboro MA
Jeffrey A. Gross - Milford MA

Assignee:

3Com Corporation - Santa Clara CA

International Classification:

H04L 1256

US Classification:

370395

Abstract:

An improvement to conventional ATM network paradigms involves the distribution of ATM switching functions across a large number of ATM switching units, each of which may typically provide a limited number of available ports, and by establishing multiple connections between the larger number of ATM switching units in a partially redundant "chained" configuration analogous to various ring type topologies. A plurality of "XNODES" each comprising a packet segmentation/reassembly circuit and an ATM switching circuit may be interconnected in various ways to form redundant ATM paths without the need to replicate large and expensive ATM switches.

US Patent:

20190184293, Jun 20, 2019

Filed:

Feb 21, 2019

Appl. No.:

16/281543

Inventors:

- Boxford MA, US
David Walls - Boxford MA, US

International Classification:

A63F 13/822
A63F 13/20
A63F 13/30
A63F 13/45

Abstract:

The present disclosure is directed to methods and systems for processing replacements to a target array by a plurality of source arrays. Selected tokens in a target array may be replaced with corresponding tokens from a source array to generate a region of identical tokens, which may be processed or removed. Tokens in the target array may be shifted in a direction corresponding to the source array to fill empty cells within the target array and new tokens generated. Selections may be made from multiple source arrays iteratively, with shift directions dynamically modified.

US Patent:

20180001214, Jan 4, 2018

Filed:

Sep 15, 2017

Appl. No.:

15/706220

Inventors:

- Boxford MA, US
David Walls - Boxford MA, US

International Classification:

A63F 13/822
A63F 13/45
A63F 13/20
A63F 13/30

Abstract:

The present disclosure is directed to methods and systems for processing replacements to a target array by a plurality of source arrays. Selected tokens in a target array may be replaced with corresponding tokens from a source array to generate a region of identical tokens, which may be processed or removed. Tokens in the target array may be shifted in a direction corresponding to the source array to fill empty cells within the target array and new tokens generated. Selections may be made from multiple source arrays iteratively, with shift directions dynamically modified.

US Patent:

20170274288, Sep 28, 2017

Filed:

Jun 9, 2017

Appl. No.:

15/618640

Inventors:

- Boxford MA, US
David Walls - Boxford MA, US

International Classification:

A63F 13/822
A63F 13/45
A63F 13/20
A63F 13/55
A63F 13/40
A63F 13/00

Abstract:

The present disclosure is directed to methods and systems for processing replacements to a target array according to an ordered list. A system may provide automatic and intuitive identification of selectable tokens by iteratively identifying all selectable tokens for processing or replacement in an array, and, for each selectable token, determining a unique vector or angle to the selectable token from a predetermined position. The selectable tokens may be placed in a list ordered by the vector or angle. A user interface may indicate a candidate selectable token and allow the user to either select the token for processing or replacement, or navigate through the ordered list to a different candidate selectable token. In one such implementation, the user may modify the vector or angle, and the user interface may highlight another candidate selectable token corresponding to the modified vector or angle.

US Patent:

20170007930, Jan 12, 2017

Filed:

Sep 22, 2016

Appl. No.:

15/273331

Inventors:

- Boxford MA, US
David Walls - Boxford MA, US

International Classification:

A63F 13/822
A63F 13/20
A63F 13/35
A63F 13/45

Abstract:

The present disclosure is directed to methods and systems for processing replacements to a target array by a plurality of source arrays. Selected tokens in a target array may be replaced with corresponding tokens from a source array to generate a region of identical tokens, which may be processed or removed. Tokens in the target array may be shifted in a direction corresponding to the source array to fill empty cells within the target array and new tokens generated. Selections may be made from multiple source arrays iteratively, with shift directions dynamically modified.

US Patent:

20160206963, Jul 21, 2016

Filed:

Apr 1, 2016

Appl. No.:

15/089074

Inventors:

- Boxford MA, US
David Walls - Boxford MA, US

International Classification:

A63F 13/822
A63F 13/45
A63F 13/20

Abstract:

An m×l array of randomly selected tokens may be provided as a playing field, and a second n×l array of randomly selected tokens may be provided as a hand. The player may select a cell within the m×l array to replace the token in said cell with a token in a corresponding cell of the n×l array. If the replacement results in a region of adjacent identical tokens in the m×l array, the tokens may be removed and the player's score incremented. If no plays are possible from the player's hand, the player may draw a new hand of randomly selected tokens to replace the tokens and/or blank spaces in the n×l array. Play continues until the player has exhausted a predetermined number of opportunities to draw a new hand.

US Patent:

20140235306, Aug 21, 2014

Filed:

Feb 17, 2014

Appl. No.:

14/182026

Inventors:

David Walls - Boxford MA, US

International Classification:

A63F 13/00

US Classification:

463 9

Abstract:

An m×l array of randomly selected tokens may be provided as a playing field, and a second n×l array of randomly selected tokens may be provided as a hand. The player may select a cell within the m×l array to replace the token in said cell with a token in a corresponding cell of the n×l array. If the replacement results in a region of adjacent identical tokens in the m×l array, the tokens may be removed and the player's score incremented. If no plays are possible from the player's hand, the player may draw a new hand of randomly selected tokens to replace the tokens and/or blank spaces in the n×l array. Play continues until the player has exhausted a predetermined number of opportunities to draw a new hand.