Eric C Chu

D531626, Nov 7, 2006

Mar 31, 2005

29/226790

Anant Agrawal - Diamond Bar CA, US
Mandeep S. Arora - Danville CA, US
Fred Cheng - Aliso Viejo CA, US
Eric M. Chu - Laguna Niguel CA, US
A. Louis Beaudoin - Oakland CA, US

Cantaloupe Systems, Inc. - Berkeley CA

1403

D14233

7385504, Jun 10, 2008

Mar 31, 2005

11/097031

Anant Agrawal - Diamond Bar CA, US
A. Louis Beaudoin - Oakland CA, US
Mandeep S. Arora - Danville CA, US
Fred Cheng - Aliso Viejo CA, US
Eric M. Chu - Laguna Niguel CA, US

Cantaloupe Systems, Inc. - Berkeley CA

G08B 13/08

3405451, 700236

A vending machine door monitoring system for an audit system is provided. This door monitoring system may utilize the same door switch utilized by the vending machine controller (VMC) in order to detect the state of an access door for the vending machine. This door monitoring system may have a separate power supply for applying a back-up voltage to a door circuit in the event that the VMC fails to supply the voltage. The door monitoring system may be further configured to detect a state of the door circuit regardless of the order in which the terminals from the door switch are coupled to the audit system.

8103380, Jan 24, 2012

Mar 31, 2005

11/097761

Fred Cheng - Aliso Viejo CA, US
Mandeep S. Arora - Danville CA, US
Anant Agrawal - Diamond Bar CA, US
A. Louis Beaudoin - Oakland CA, US
Eric M. Chu - Laguna Niguel CA, US

Cantaloupe Systems, Inc. - Berkeley CA

G06F 17/00

700244, 700236, 700240

Systems and methods for remotely managing a vending machine system are provided. A host system transmits control data to an audit system installed in a vending machine system. This control data is used to modify a data collection parameter of the audit system, such as modifying alert conditions, reporting schedules, and filter terms used to parse DEX files received from a vending machine controller.

8339219, Dec 25, 2012

May 11, 2010

12/777355

Jack L. Skinner - Brentwood CA, US
Eric Y Chu - Palo Alto CA, US
Harvey Ho - Pleasanton CA, US

Sandia Corporation - Albuquerque NM

H03H 9/64
G08B 1/08
G08B 17/12
G08B 21/00
G08C 19/12

333193, 333150, 310313 R, 340 101, 340 1251, 340 1326, 34053926, 340600, 340602, 340665

The integration of surface acoustic wave (SAW) filters, microfabricated transmission lines, and sensors onto polymer substrates in order to enable a passive wireless sensor platform is described herein. Incident microwave pulses on an integrated antenna are converted to an acoustic wave via a SAW filter and transmitted to an impedance based sensor, which for this work is a photodiode. Changes in the sensor state induce a corresponding change in the impedance of the sensor resulting in a reflectance profile. Data collected at a calibrated receiver is used to infer the state of the sensor. Based on this principal, light levels were passively and wirelessly demonstrated to be sensed at distances of up to about 12 feet.

20140025423, Jan 23, 2014

Sep 24, 2013

14/034958

Anant Agrawal - Diamond Bar CA, US
Fred Cheng - Aliso Viejo CA, US
Eric Matthew Chu - Laguna Niguel CA, US
Amedee Louis Beaudoin - Oakland CA, US

Cantaloupe Systems, Inc. - San Francisco CA

G06Q 10/06

705 725

Techniques are provided for calculating vending machines' service priorities and scheduling the vending machines for service taking into account a number of factors and thresholds (). In some embodiments, the machines () are subdivided into subroutes (). Each subroute has one or more machines, and at least one subroute has a plurality of machines. The vending machine service schedule is generated by selecting the highest priority subroute () and selecting the machines in that subroute (). Other subroutes can be selected () if there is time left in the Service Period.

20160247127, Aug 25, 2016

Jan 28, 2016

15/009482

- San Francisco CA, US
Anant Agrawal - Diamond Bar CA, US
Fred Cheng - Aliso Viejo CA, US
Eric Matthew Chu - Laguna Niguel CA, US
Amedee Louis Beaudoin - Oakland CA, US

G06Q 10/10
G07F 9/02
G07F 11/00

Techniques are provided for calculating vending machines' service priorities and scheduling the vending machines for service taking into account a number of factors and thresholds (). In some embodiments, the machines () are subdivided into subroutes (). Each subroute has one or more machines, and at least one subroute has a plurality of machines. The vending machine service schedule is generated by selecting the highest priority subroute () and selecting the machines in that subroute (). Other subroutes can be selected () if there is time left in the Service Period.