Leonard M Chansky

6603276, Aug 5, 2003

Aug 21, 2001

09/935059

Leonard M Chansky - Northridge CA
Ken Vannice - Portland OR
Craig LeVasseur - Camarillo CA

Leviton Manufacturing Co., Inc. - Little Neck NY

H05B 3702

315362, 315295, 315DIG 4, 361600, 361697

A dimming control system includes dimmer modules which receive dimming level information from a control module. Each dimmer modules includes a microprocessor which provides internal intelligence for controlling power to a load in response to the dimming level information. The control module receives industry standard protocol dimming information from various sources, converts it to dimming level information, and communicates the dimming level information to the dimmer modules through serial communication lines. The dimmer modules and control module are mounted in a rack which includes a backplane having nonvolatile memory device that retains configuration data even if the control module is removed from the rack. The dimmer modules implement a zero cross prediction method which includes detecting an actual zero cross, calculating an error, and adding the error to the period of a line power signal. The error is calculated by applying a median filter to a plurality of previous error values, discarding the highest and lowest values of the previous error values, and averaging the remaining previous error values.

6930455, Aug 16, 2005

Sep 18, 2002

10/247785

Leonard M. Chansky - Northridge CA, US
John W. Fuller - Altadena CA, US
Ronald A. Land - Simi Valley CA, US
Robert Whitten - Tujunga CA, US

Leviton Manufacturing Co., Inc. - Little Neck NY

H05B037/00

315315, 315316, 34082522, 362 85

A theatrical lighting control network is disclosed which incorporates a local area network for communication among a number of node controllers and control consoles or devices employed in establishing lighting or other effects levels in a theater, film production stage or other performance environment. Use of the network eliminates the requirements for the majority of hardwiring for interconnection of consoles and other controller or monitoring devices to effects controller racks and provides great flexibility in location and relocation of various components of the system.

7737819, Jun 15, 2010

Jun 21, 2005

11/158934

Leonard M. Chansky - Northridge CA, US
John W. Fuller - Altadena CA, US
Ronald A. Land - Simi Valley CA, US
Robert Whitten - Tujunga CA, US

Leviton Manufacturing Co., Inc. - Melville NY

G05F 1/00

340 37, 315315, 340825

A theatrical lighting control network is disclosed which incorporates a local area network for communication among a number of node controllers and control consoles or devices employed in establishing lighting or other effects levels in a theater, film production stage or other performance environment. Use of the network eliminates the requirements for the majority of hardwiring for interconnection of consoles and other controller or monitoring devices to effects controller racks and provides great flexibility in location and relocation of various components of the system.

20020105290, Aug 8, 2002

Jan 10, 2002

10/043882

Leonard Chansky - Northridge CA, US
John Fuller - Altadena CA, US
Ronald Land - Simi Valley CA, US
Robert Whitten - Tujunga CA, US

G05F001/00

315/294000, 315/292000

A theatrical lighting control network is disclosed which incorporates a local area network for communication among a number of node controllers and control consoles or devices employed in establishing lighting or other effects levels in a theater, film production stage or other performance environment. Use of the network eliminates the requirements for the majority of hardwiring for interconnection of consoles and other controller or monitoring devices to effects controller racks and provides great flexibility in location and relocation of various components of the system.

20040051485, Mar 18, 2004

Jun 17, 2003

10/464432

Leonard Chansky - Northridge CA, US
Ken Vannice - Portland OR, US
Craig LeVasseur - Camarillo CA, US

H05B041/36

315/362000, 315/199000, 315/DIG005, 315/DIG004

A dimming control system includes dimmer modules that receive dimming level information from one of at least two control modules. Each dimmer module includes a microprocessor that provides internal intelligence for controlling power to a load in response to dimming level information. Control modules receive industry standard protocol dimming information from various sources, convert it to dimming level information, and serially communicate the dimming level information to the dimmer modules. Dimmer modules and control modules are mounted in a rack which includes a backplane having a nonvolatile memory device that retains configuration data even if control modules are removed from the rack. An inactive control module can assume control of the rack when an active control module fails.

20060108950, May 25, 2006

Aug 30, 2005

11/216539

Leonard Chansky - Northridge CA, US
Ken Vannice - Portland OR, US
Craig LeVasseur - Camarillo CA, US

H05B 37/02

315294000

A dimming control system includes dimmer modules that receive dimming level information from one of at least two control modules. Each dimmer module includes a microprocessor that provides internal intelligence for controlling power to a load in response to dimming level information. Control modules receive industry standard protocol dimming information from various sources, convert it to dimming level information, and serially communicate the dimming level information to the dimmer modules. Dimmer modules and control modules are mounted in a rack which includes a backplane having a nonvolatile memory device that retains configuration data even if control modules are removed from the rack. An inactive control module can assume control of the rack when an active control module fails.

63168898, Nov 13, 2001

Feb 26, 1998

9/031097

Leonard Chansky - Northridge CA
Ken Vannice - Los Angeles CA
Wiley Gilreath - Simi Valley CA
Craig LeVasseur - Camarillo CA

Leviton Manufacturing Co., Inc. - Little Neck NY

H05B 3700

315317

A dimming control system includes a non-volatile memory mounted to a backplane in a rack having a control module slot for receiving a control module, and a plurality of dimmer module slots for receiving dimmer modules. The non-volatile memory stores operational information for the rack, and the control module can be removed from the rack without affecting the information stored in the nonvolatile memory. The non-volatile memory is adapted to store looks which can be invoked by the rack without external control. The rack includes a pull-out tray for receiving the control module, and the pull-out tray includes a back wall which functions as the backplane. The non-volatile memory can be programmed through the control module by a computer or a hand-held controller coupled to the control module. The hand-held controller includes a display and can provide local control of the rack. When the hand-held controller is mounted in a carrier on the front door of the rack, the display is visible through a viewing window in the door.

57709289, Jun 23, 1998

Nov 2, 1995

8/552056

Leonard Chansky - Northridge CA
Ken Vannice - Los Angeles CA
Wiley Gilreath - Simi Valley CA
Craig LeVasseur - Camarillo CA

NSI Corporation - Wilsonville OR

H05B 3702

315362

A dimming control system includes dimmer modules which receive dimming level information from a control module. Each dimmer modules includes a microprocessor which provides internal intelligence for controlling power to a load in response to the dimming level information. The control module receives industry standard protocol dimming information from various sources, converts it to dimming level information, and communicates the dimming level information to the dimmer modules through serial communication lines. The dimmer modules and control module are mounted in a rack which includes a backplane having nonvolatile memory device that retains configuration data even if the control module is removed from the rack. The dimmer modules implement a zero cross prediction method which includes detecting an actual zero cross, calculating an error, and adding the error to the period of a line power signal. The error is calculated by applying a median filter to a plurality of previous error values, discarding the highest and lowest values of the previous error values, and averaging the remaining previous error values.