Julian Xi Chen

US Patent:

6510410, Jan 21, 2003

Filed:

Jul 28, 2000

Appl. No.:

09/627595

Inventors:

Julian Chengjun Chen - White Plains NY
Guo Kang Fu - Beijing, CN
Hai Ping Li - Beijing, CN
Li Qin Shen - Beijing, CN

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G10L 1504

US Classification:

704251, 704255, 704236, 704207

Abstract:

A method and an apparatus for automatic recognition of tone languages, employing the steps of converting the words of speech into an electrical signal, generating spectral features from the electrical signal, extracting pitch values from the electrical signal, combining said spectral features and the pitch values into acoustic feature vectors, comparing the acoustic feature vectors with prototypes of phonemes in an acoustic prototype database including prototypes of toned vowels to produce labels, and matching the labels to text using a decoder comprising a phonetic vocabulary and a language model database.

US Patent:

7092870, Aug 15, 2006

Filed:

Sep 15, 2000

Appl. No.:

09/663812

Inventors:

Julian C. Chen - White Plains NY, US
Dimitri Kanevsky - Ossining NY, US
Wlodek W. Zadrozny - Tarrytown NY, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 17/27
G10L 21/00
G06K 9/00
G06K 9/18

US Classification:

704 9, 704270, 382181, 382186

Abstract:

A system and method for indexing and searching textual archives using semantic units such as syllables and morphemes. In one aspect, a system for indexing a textual archive comprises an AHR (automatic handwriting recognition) system and/or OCR (optical character recognition) system for transcribing (decoding) textual input data (handwritten or typed text) into a string of semantic units (e. g. , syllables or morphemes) using a statistical language model and vocabulary based on semantic units (such as syllables or morphemes). The string of semantic units that result from a decoding process are stored in a semantic unit database and indexed with pointers to the corresponding textual data in the textual archive. In another aspect, a system for searching a textual archive is provided, wherein a word (or words) to be searched is rendered into a string of semantic units (e. g. , syllables or morphemes) depending on the application.

US Patent:

20080231143, Sep 25, 2008

Filed:

Apr 23, 2008

Appl. No.:

12/107941

Inventors:

Julian Chen - White Plains NY, US
Oswald Pietzsch - Hamburg, DE
Daniel Haude - Hamburg, DE

Assignee:

UNIVERSITAT HAMBURG - Hamburg

International Classification:

H01L 41/09

US Classification:

310328

Abstract:

The invention relates to a piezoelectric movement device, in particular a motor, with a piezoelectric apparatus, which has a middle area and two end areas, and with a movement body, which is mounted on or in a mount or the piezoelectric apparatus, wherein one end area is designed or both end areas are designed to exert a force in the direction of the movement body, in particular diagonally and axially or transversely of the axis to a longitudinal axis of the piezoelectric apparatus, on the movement body. The invention is characterized in that the middle area is a piezoelectric body and the end areas each comprise at least two piezoelectric bodies, which are connected with each other, in particular via contact surfaces.