Hang F Ung

US Patent:

20190026492, Jan 24, 2019

Filed:

Nov 3, 2017

Appl. No.:

15/803689

Inventors:

- Saratoga CA, US
Hang Ung - Saratoga CA, US
Philippe René Morin - Goleta CA, US

International Classification:

G06F 21/62
H04L 9/06
H04W 4/02
H04L 9/00

Abstract:

Disclosed herein is a technique to mask personally identifying information (PII) in a people counting system. A sensor that capable of identifying individual mobile devices, such as smart phones, counts people in a given area. Once identified, information that identifies given mobile devices is hashed. The hashed data is used with a filter to determine recurrence of individuals without actually storing any information specifically about those individuals. In order to determine the count of people externally from the sensor, the hashed data is analyzed for cardinality.

US Patent:

20190028849, Jan 24, 2019

Filed:

May 24, 2018

Appl. No.:

15/989134

Inventors:

- Saratoga CA, US
Hang Ung - Saratoga CA, US
Philippe René Morin - Goleta CA, US

International Classification:

H04W 4/029
G06F 17/30

Abstract:

Disclosed herein is a technique to improve the processing of people counting systems. The technique involves the use of a system that counts the local number of wireless/mobile devices via machine identifiers. When the counting device scrapes the machine identifier from a mobile device, the identifier is hashed using a one-way hash function. The hash code corresponds to a bit location on a bitmap. The location in the bitmap is checked. If the bit is already marked full, the mobile device has been previously detected, if the pixel location is empty, this is a new device. Thus, a single bit represents each machine identifier. The number of unique people in a monitored location is the number of full bits in the bitmap.

US Patent:

20170373755, Dec 28, 2017

Filed:

Jun 22, 2016

Appl. No.:

15/189525

Inventors:

- Houston TX, US
Hang Maxime Ung - Palo Alto CA, US

International Classification:

H04B 10/114
H04L 29/06

Abstract:

A method, a system, and a non-transitory computer-readable memory resource containing instructions for transmitting data are provided. In an example, the method includes providing a header signal having a first optical property. The header signal indicates a start of a packet, and has a minimum period between transitions that is less than a frame period of a receiving device and greater than a scanline period of the receiving device. A payload signal of the packet is provided that has a second optical property that is different from the first optical property. The payload signal has a minimum period between transitions that is less than the frame period of the receiving device and greater than the scanline period of the receiving device.