John R Miguel

US Patent:

7856516, Dec 21, 2010

Filed:

Oct 27, 2006

Appl. No.:

11/588971

Inventors:

John Flores Miguel - Pittsburg CA, US
Bonnie H. Caballero - Sunnyvale CA, US
Yasuhide Sato - San Ramon CA, US
Barry Sia - Concord CA, US
Paolo A. Tamayo - San Ramon CA, US

Assignee:

Kyocera Mita Corporation - Chuo-ku, Osaka-shi, Osaka
Kyocera Technology Development, Inc. - Concord CA

International Classification:

G06F 13/12

US Classification:

710 62, 710 35, 710 48, 710 66

Abstract:

A method for interfacing single transfer and burst transfer components, comprising: processing transfer completion of a byte in burst transfer as an interrupt; maintaining the current state of signal lines to prevent occurrence of next interrupt; copying the transferred byte from buffer to memory; and allowing next interrupt; and enabling sending of next byte in burst transfer. This invention interfaces incompatible signaling of the components, and solves the handshake, communication and buffering problems involved. The methods also include polling simulating an interrupt, prevention of premature transfer and overwrite, interrupt on an edge of a busy signal, disabling and enabling clock to maintain current status, packet exchange protocol involving header, body and checksum, command and status packets, copying task waiting on a blocking semaphore which is signaled by interrupt handler task, and signals from a first component routed to a conversion component which generates new signals compatible with the second component.

US Patent:

20070299650, Dec 27, 2007

Filed:

Jun 23, 2006

Appl. No.:

11/473961

Inventors:

Paolo A. Tamayo - Pleasant Hill CA, US
John Flores Miguel - Pittsburg CA, US
Yuichi Komori - Pleasant Hill CA, US

International Classification:

G06F 9/455

US Classification:

703 27

Abstract:

A method for changing operation of a device, comprising: sending target device descriptors to the device's device emulator, which processes and stores the descriptors as the current descriptors in memory, and the device emulator responding to a query from a host simulating operation of the target device. Using the method, the host recognizes the device as a different, target device, such as printers, MFPs, peripherals, digital cameras, etc. Device emulation enables installation and other testing of a new and yet unavailable target device under development. The methods also include USB device enumeration, making a print job containing extended PJL commands and sending it using a generic device driver, emulator firmware analyzing and storing the descriptors in registers, sending a line reset command to simulate device detachment and reattachment, and meeting timing requirements of USB detached and attached states.