US007110579B2

(12) United States Patent

(10) Patent N0.: (45) Date of Patent:

Hashimoto (54)

US 7,110,579 B2 Sep. 19, 2006

IMAGE SYNTHESIZING APPARATUS

6,289,114 B1*

9/2001

WHICH SWITCHES BETWEEN A FIRST AND SECOND MODE OF READING DIFFERENT NUMBER OF PIXELS

6,587,597 B1*

7/2003 Nakao et al. ..

6,754,368 B1*

6/2004

Mainguet .................. .. 382/124

382/284

Cohen ...................... .. 382/103

FOREIGN PATENT DOCUMENTS

(75)

Inventor:

Seiji Hashimoto, KanagaWa (JP)

(73) Assignee: Canon Kabushiki Kaisha, Tokyo (JP) (*)

Notice:

500%

3198810

8/2001

OTHER PUBLICATIONS Of?ce Action, dated Dec. 1, 2004, in Korean Application No.

U.S.C. 154(b) by 714 days.

1040030010552 * Cited by examiner

_

Primary Examineriloseph Mancusco

Flled:

Feb‘ 20’ 2003 _

(65)

Assistant ExamineriKathleen Yuan _

_

(74) Attorney, Agent, or FirmiFitZpatrick, Cella, Harper &

Prior Publication Data

US 2003/0156744 A1

(30)

Scimo

Aug. 21, 2003

(57)

ABSTRACT

Foreign Application Priority Data

Feb 22 2000 Feb' 20’ 2002 Feb' 22’ 2002 '

(51)

1 306 804

JP

Subject to any disclaimer, the term of this patent is extended Or adjusted under 35

(21) Appl. N0.: 10/368,578 (22)

EP

(JP) (JP) (JP)

2002/0 4 6 475 """""""""""""" " 2002043238

'

’

An image input apparatus for sequentially obtaining a plu rality of partial images Which are portions of an image of an object, by relatively moving the object and a sensor having

2002/0 4 6 473

"""""""""""""" "

a plurality of pixel circuit units, including a drive circuit

Int_ CL

Which e?‘ects control so as to store photoelectric charge en

G06K 9/36

(200601)

bloc at photoelectric conversion units respectively included

G06K 9/00

(2006 01)

in the plurality of pixel circuit units, then blanket-transfer

(58) (52) lsrield us. Cl. ofrclissi??cla?tfm ..................... .. searclht 382/124; """"" 382/284;382/124 382/278 ee app lea Ion

(56)

e or Comp 6 e Seam

included in the corresponding pixel circuit units, and then

15 Dry‘

read the photoelectric signals, and noise signals generated in

References Cited

the pixel circuit units in this order from the pixel circuit units.

U.S. PATENT DOCUMENTS 5,259,040 A *

11/1993 Hanna ...................... .. 382/107

1 Claim, 19 Drawing Sheets

118 /\/

DISPLAY UNIT

A‘I/10

111

113

114

# FEATURE POINT

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119

116

CORRECTION UNIT

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DISCRIMINATION UNIT N

117 _> IMAGE

DISCRIMINATION UNIT

I

IMEMORY n‘; 1 I _ _ _ _ _ _ . _ _ _

115

STORAGE

U.S. Patent

Sep. 19, 2006

Sheet 2 0f 19

FIG. 2A “FINGER

DING A

FIG. 2B FINGER

US 7,110,579 B2

U.S. Patent

Sep. 19, 2006

US 7,110,579 B2

Sheet 3 0f 19

FIG. 3 OBJECT IMAGE

7L DATA B DATA C

/ /

DATA A

FIG. 4 3s

35

N

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N

TIMI GEN R TOR 36 /\/

TEMPORARY STORAGE MEMORY

VERTICAL SHIFT REGISTER

PHOTOELECTRIC

:(> 83|NVERSION T

PGA

_ A/ D

CONVERTER

U.S. Patent

Sep. 19, 2006

Sheet 4 0f 19

FIG. 5

T IIJMV

JMRES IL MTX

PDT ¢ sel(n) (bP

qbsel(n+1)

F——1 MSF

MSEL

US 7,110,579 B2

U.S. Patent

Sep. 19, 2006

Sheet 5 0f 19

,

43 start

(b LED

ONE FRAME

US 7,110,579 B2

.

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PHOTOELECTRIC

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236

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U.S. Patent

Sep. 19, 2006

Sheet 18 0f 19

US 7,110,579 B2

FIG. 23 -

(I) start

ONE FRAME

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DATA D

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DATA A

DATA D

DATA C

U.S. Patent

Sep. 19, 2006

Sheet 19 0f 19 DATA C (

OVERLAP PORTION L2

I

,

FIG 25

US 7,110,579 B2

,

________ __

DATA Kk_ DDT",' ' ' T DATA 13%;? i____

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