Fred Tun-Jen Cheng

US Patent:

7334255, Feb 19, 2008

Filed:

Sep 29, 2003

Appl. No.:

10/675888

Inventors:

Paul Lin - Fremont CA, US
Henry Hon - Berkeley CA, US
Fred Cheng - Berkeley CA, US

Assignee:

Authenex, Inc. - Hayward CA

International Classification:

H04L 29/00

US Classification:

726 2, 713168

Abstract:

A system and method for controlling access to multiple public networks and for controlling access to multiple private networks is provided. Authentication is used with unique public shared secrets and unique private shared secrets to control access to the networks. The invention includes a user device for communicating with at least a public network and/or a private network. The device may be capable of accessing multiple networks through one or more private networks with multiple access control servers. The user device must provide a correct response to each access control server, before access to the network may be granted. The device generates a one-time password, or response, to gain access to a controlled network server. The response generated by the device is matched to a response generated by an access control server that may have generated a challenge that prompted the response. If the two responses match, the device is authenticated and a user of the device is granted access to the network server.

US Patent:

7865936, Jan 4, 2011

Filed:

Jan 28, 2008

Appl. No.:

12/021071

Inventors:

Paul Lin - Fremont CA, US
Henry Hon - Berkeley CA, US
Fred Cheng - Union City CA, US

Assignee:

Authenex, Inc. - San Jose CA

International Classification:

H04L 29/00

US Classification:

726 2, 713168

Abstract:

A system and method for controlling access to multiple public networks and for controlling access to multiple private networks is provided. Authentication is used with unique public shared secrets and unique private shared secrets to control access to the networks. The invention includes a user device for communicating with at least a public network and/or a private network. The device may be capable of accessing multiple networks through one or more private networks with multiple access control servers. The user device must provide a correct response to each access control server, before access to the network may be granted. The device generates a one-time password, or response, to gain access to a controlled network server. The response generated by the device is matched to a response generated by an access control server that may have generated a challenge that prompted the response. If the two responses match, the device is authenticated and a user of the device is granted access to the network server.

US Patent:

20060075486, Apr 6, 2006

Filed:

Sep 28, 2005

Appl. No.:

11/237098

Inventors:

Paul Lin - Fremont CA, US
Fu-Hua Lee - Foster City CA, US
Fred Cheng - Fremont CA, US

International Classification:

H04L 9/32

US Classification:

726020000

Abstract:

A token device that contains software and firmware required for running and installing a variety of applications is provided. The token is configured to connect to a host device via a USB port, wireless receiver or other means. The token may contain varying combinations of installers, applications, drivers, memory, and firmware. Token-related and non-token related applications that may be contained in the token's memory may include those required for smart card, cryptographic service provider, authentication, firewall, antivirus, and VPN type applications.

US Patent:

20110267462, Nov 3, 2011

Filed:

Apr 29, 2010

Appl. No.:

12/770007

Inventors:

Fred Cheng - Los Altos Hills CA, US
Herman Yau - Palo Alto CA, US

International Classification:

H04N 7/18
H04W 4/00

US Classification:

348143, 4554221, 348E07085

Abstract:

A communication device for monitoring an infant remotely has a controller and a memory. The communication device also has a transmitter, a receiver, a display screen, and a speaker. The receiver receives data associated with the infant. The data is adapted for display on the display screen and is adapted for outputting audio via the speaker. The controller controls the transmitter for transmitting the data along at least one communication path of a plurality of communication paths to a remote destination.

US Patent:

20110289576, Nov 24, 2011

Filed:

Nov 17, 2010

Appl. No.:

12/948705

Inventors:

Fred Cheng - Los Altos Hills CA, US

International Classification:

H04L 9/32

US Classification:

726 9

Abstract:

The present disclosure proposes a secure way to generate the OTP code by way of a web browser. A user does not need any electronic device on hand to obtain OTP for 2FA login. A new Rubbing Encryption Algorithm (REAL) is proposed as the base technology. Implementation method of such web-based OTP token is presented and analyzed. It operates through a web-browser with a multiple REAL keys. It can be integrated into many secure Internet commerce applications as well. A system is provided for secure access to a software program or website. The system has a first entity with a computing device with a processor and a memory. The first entity provides a plurality of data items. The system also has a second entity with at least one display for displaying the plurality of data items. The data items are arranged in a predetermined format. The display also displays a prompt for a user identification and a prompt for a code. The second entity has a member with a transparent portion. The transparent portion comprises a periphery with a plurality of markings placed around the periphery. The markings point to a first direction or to an opposite second direction. The second entity overlays the member over the data items. The markings point to the plurality of data items to reveal a code. The code is input and permits access of the second entity to the computing device of the first entity.

US Patent:

20120044354, Feb 23, 2012

Filed:

Aug 22, 2010

Appl. No.:

12/860910

Inventors:

Fred Cheng - Los Altos Hills CA, US
Herman Yau - Palo Alto CA, US

International Classification:

H04N 7/18
H04W 84/02
H04N 5/225

US Classification:

348159, 3482071, 370338, 348E07085, 348E05024

Abstract:

A versatile dual mode wireless camera hotspot and method. The method comprises capturing data comprising at least one of video and audio from a camera. The camera has a transmitter and receiver integrated with the camera. The camera further provides a wireless access point to allow access to a network.

US Patent:

20120257051, Oct 11, 2012

Filed:

Apr 6, 2011

Appl. No.:

13/081431

Inventors:

Fred Cheng - Los Altos Hills CA, US
Herman Yau - Palo Alto CA, US

International Classification:

H04N 7/18

US Classification:

348143, 348E05024

Abstract:

A method for capturing data comprising at least one of video and audio from a camera comprising a transmitter and receiver integrated with the camera, wherein the camera outputs data to a first local device in a first communication format and wherein the camera simultaneously outputs data in a second different communication format.

US Patent:

46945016, Sep 15, 1987

Filed:

Dec 10, 1984

Appl. No.:

6/680026

Inventors:

Fred T. Cheng - Cupertino CA

Assignee:

National Semiconductor Corporation - Santa Clara CA

International Classification:

H04H 500

US Classification:

381 15

Abstract:

An AM stereo receiver uses an AM detector (208) and an asynchronous PM detector (206) to decode AM stereo signals. The AM stereo broadcast signal has a carrier signal phase modulated with a modified phase shifted left channel minus right channel (L-R) audio signal, which is then amplitude modulated with a phase shifted left channel plus right channel (L+R) audio signal. The AM detector (208) within the receiver decodes the phase shifted L+R signal, while the PM detector 206 within the receiver decodes the modified phase shifted L-R signal. A phase shifter (214) restores the L+R and L-R signals to their proper phase relationship. A matrix circuit (228) regenerates the left and right channel signals from the L+R and L-R signals.