Elan Microelectronics Corporation v. Apple, Inc.

Filing 86

Declaration of Derek C. Walter in Support Apple's of Opening Claim Construction Brief re 85 filed by Apple, Inc. (Attachments: # 1 Exhibit A, # 2 Exhibit B, # 3 Exhibit C, # 4 Exhibit D, # 5 Exhibit E, # 6 Exhibit F, # 7 Exhibit G, # 8 Exhibit H, # 9 Exhibit I, # 10 Exhibit J, # 11 Exhibit K, # 12 Exhibit L, # 13 Exhibit M, # 14 Exhibit N, # 15 Exhibit O, # 16 Exhibit P, # 17 Exhibit Q, # 18 Exhibit R, # 19 Exhibit S, # 20 Exhibit T, # 21 Exhibit U, # 22 Exhibit V) (Powers, Matthew) (Filed on 5/7/2010) Modified on 5/10/2010 (bw, COURT STAFF).

EXHIBIT R

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US007274353B2

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United States P a t e n t
C h i u et al.
CAPACITIVE TOUCHPAD INTEGRATED W I T H K E Y AND H A N D W R I T I N G FUNCTIONS Inventors: Y e n - C h a n g C h i u , Taipei (TW); T i n g - H a o Yeh, Tainan (TW); Y u n g - L i e h C h i e n , T a o y u a n (TW); S h i h - C h i L i n , M a d o u Township, T a i n a n C o u n t y (TW) Assignee: E l a n M i c r o e l e c t r o n i c s C o r p o r a t i o n , H s i n - C h u (TW) Notice: Subject to any disclaimer, the t e n n o f this patent is extended o r adjusted u n d e r 35 U . S . c . 154(b) b y 425 days.

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P a t e n t No.: US 7,274,353 B2 Date o f P a t e n t : Sep.25,2007
A* A* A* A* A* A* A* Bl * Bl * Bl * Bl * B2 * B2 * Bl * B2 * Al * Al * Al * Al * Al * Al * Al * Al * Al * 12/1989 3/1995 8/1996 8/1998 2/1999 12/1999 7/2000 112002 7/2002 10/2002 11/2003 2/2005 5/2005 4/2006 4/2006 2/2002 112003 4/2003 4/2003 2/2004 6/2004 7/2004 8/2004 1/2005 Negishi e t al. . Duwaer B u c h a n a e t al. G e a g h a n e t al. Young Kasser Rakoski N o v a e t al. Lee Resman S c h e d i w y e t al. Casebolt e t al Westerman e t al. H s u et al Nozaki Westerman e t al. M o r i y a e t al. O m u r a e t al. Speakman Dostie e t al. Ichikawa Charlier e t al. Speakman Low 345/174 345/173 178/18.03 715/763 178/20.01 345/173 345/168 435/287.1 345/173 345/173 341120 345/173 345/173 345/173 345/173 345/173 345/179 709/205 3611524 345/773 345/173 379/433.07 365/49 345/169

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Appl. No.: 10/668,352 Filed: S e p . 24, 2003 Prior Publication Data US 2 0 0 4 / 0 1 9 6 2 7 0 A l Oct. 7, 2004

4,885,574 5,402,151 5,543,589 5,790,114 5,869,791 6,002,389 6,088,022 6,340,588 6,417,846 6,459,424 6,642,857 6,850,229 6,888,536 7,030,860 7,030,862 2002/0015024 2003/0006975 2003/0069931 2003/0076649 2004/0021691 2004/0119700 2004/0125947 2004/0151014 2005/0001821

(Continued)
P r i m a r y E x a m i n e r - B i p i n Shalwala A s s i s t a n t E x a m i n e r - P r a b o d h Dharia (74) Attorney, Agent, o r F i r m - R o s e n b e r g , Klein & Lee

(30) Apr. 2, 2003 (51) (52) (58)

Foreign Application Priority Data (TW) 92205217 U

Int. Cl. G09G 5/00 U.S. C l .

(2006.01) 3 4 5 / 1 5 6 ; 345/173; 3 4 5 / 1 7 4 ; 345/178; 345/179 F i e l d o f C l a s s i f i c a t i o n S e a r c h ... ..... 3 4 5 / 1 5 6 - 1 5 9 , 3 4 5 / 1 6 3 - 1 6 9 , 1 7 3 - 1 7 9 , 7 7 3 ; 379/90.01; 709/205; 1 7 8 / 1 8 . 0 1 - 1 8 . 0 6 ; 341/20; 364/188; 3 4 0 / 7 1 1 ; 4 3 8 / 6 7 4 ; 3 6 5 / 4 9 ; 3 6 1 / 5 2 4 ; 435/287.1 See application file for complete search history.

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ABSTRACT

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References Cited U.S. PATENT DOCUMENTS
4,745,543 A

A capacitive t o u c h p a d integrated w i t h key a n d handwriting functions is provided for operation in key, handwriting and m o u s e m o d e s . S e v e r a l regions are d e f i n e d o n t h e panel o f t h e t o u c h p a d a n d h a v e several p a t t e r n s p r i n t e d t h e r e o n for the operation modes thereby. In the key mode, the key patterns a m o n g t h e p r i n t e d patterns simulate a keyboard. I n t h e h a n d w r i t i n g mode, t h e h a n d w r i t i n g r e g i o n a m o n g t h e d e f i n e d r e g i o n s s e r v e s to h a n d w r i t i n g input. I n t h e m o u s e mode, t h e defined regions p r o v i d e a c u r s o r m o v i n g r e g i o n a n d a h o r i z o n t a l a n d v e r t i c a l scroll b a r s for i n p u t o p e r a t i o n s . 12 C l a i m s , 4 D r a w i n g S h e e t s

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1
CAPACITIVE TOUCHPAD INTEGRATED WITH KEY AND HANDWRITING FUNCTIONS F I E L D OF T H E I N V E N T I O N The present invention relates generally to a capacItive touchpad, and, m o r e particularly, to a capacitive t o u c h p a d i n t e g r a t e d w i t h k e y a n d h a n d w r i t i n g functions.
10

2
S U M M A R Y OF T H E I N V E N T I O N
A n object o f the p r e s e n t invention is to p r o p o s e a capacit i v e t o u c h p a d i n t e g r a t e d w i t h k e y a n d h a n d w r i t i n g functions. A c c o r d i n g to t h e p r e s e n t invention, a c a p a c i t i v e t o u c h p a d i n t e g r a t e d w i t h k e y a n d h a n d w r i t i n g functions c a n p r o v i d e multiple operation modes, such as keypad, handwriting a n d mouse. The panel o f the present touchpad is defined into several regions w i t h p l e n t y o f p a t t e r n s p r i n t e d t h e r e o n for r e p r e s e n t i n g t h e interfaces c o r r e s p o n d i n g to t h e o p e r a t i o n modes. I n t h e k e y mode, t h e k e y patterns a m o n g t h e p r i n t e d patterns simulate a keyboard. I n t h e h a n d w r i t i n g m o d e , t h e handwriting region among t h e defined regions serves to h a n d w r i t i n g input. I n t h e m o u s e m o d e , t h e d e f i n e d r e g i o n s p r o v i d e a c u r s o r m o v i n g r e g i o n a n d a horizontal a n d vertical scroll bars for i n p u t o p e r a t i o n s .

B A C K G R O U N D OF T H E I N V E N T I O N Touchpad is well k n o w n a n d widely u s e d i n various e l e c t r o n i c p r o d u c t s . T o u c h p a d p r o v i d e s a simple, e a s y a n d cheap pointing device, such as t h o s e i n laptop c o m p u t e r s y s t e m s f o r m o u s e f u n c t i o n . FIG. 5 s h o w s a s c h e m a t i c d i a g r a m o f t h e c o n s t r u c t i o n o f a t o u c h p a d a n d t h e operational p r i n c i p l e thereof, i n w h i c h a n i n s u l a t o r p l a t e (not shown) is arranged o n t h e top o f t h e functional stack consisting o f a ground plate 36, a layer o f traces 38 along Y-axis, a l a y e r o f t r a c e s 4 0 a l o n g X - a x i s , a l l o f t h e m connected to a control circuit 46 apart from the panel 12. A n equivalent capacitance 42 presents b e t w e e n the Y-axis trace 3 8 a n d t h e g r o u n d p l a t e 3 6 , a n d a n e q u i v a l e n t c a p a c i t a n c e 44 p r e s e n t s b e t w e e n t h e X - a x i s t r a c e 40 a n d t h e g r o u n d p l a t e 3 6 . O n c e f i n g e r o r c o n d u c t o r t o u c h i n g t h e p a n e l 12, t h e c o n t r o l c i r c u i t 46 d e t e r m i n e s t h e t o u c h e d p o s i t i o n o f t h e finger o r c o n d u c t o r b y s e n s i n g t h e c h a n g e i n c a p a c i t a n c e s o f e a c h c o r r e s p o n d i n g t r a c e s 3 8 a n d 40 a n d r e s p o n d s f o r further process. T h e r e a r e t h r e e t y p e s o f t o u c h p a d s , i.e., r e s i s t i v e , e l e c tromagnetic a n d capacitive. T h e capacitive t o u c h p a d w a s applied for touching m o d e monitors such as t h o s e in public I n t e r n e t p h o n e s a n d g u i d i n g systems. However, t h e c a p a c i t i v e t o u c h p a d l a c k s o f h a n d w r i t i n g function. T h e r e s i s t i v e t o u c h p a d has b e e n u s e d for touching m o d e monitors such as t h e a p p l i c a t i o n s i n p e r s o n a l digital assistants (PDA) a n d e l e c t r o n i c dictionaries. Unfortunately, t h e r e s i s t i v e t o u c h p a d c a n n o t b e i n p u t t e d b y light t o u c h i n g o f u s e r s ' f i n g e r s . Currently, t h e m o d u l e s a v a i l a b l e f o r h a n d w r i t i n g r e c o g n i t i o n s a n d k e y p a d s o n t a b l e t P C s a n d e l e c t r o n i c b o o k s a r e all i m p l e m e n t e d w i t h resistive o r electromagnetic touchpads. T h e resistive touchpad is operated only by focused-point pressing o n its panel, a n d t h e electromagnetic t o u c h p a d is o p e r a t e d b y a b a t t e r e d i n p u t pen. I n c o n s i d e r a t i o n o f f u n c t i o n a l i t y a n d cost, t h e c a p a c i t i v e t o u c h p a d is obviously preferred o v e r the resistive a n d electromagnetic touchpads. T h e operational principle o f the capacitive t o u c h p a d e m p l o y s t h e i n s t a n t electric c h a n g e p r o d u c e d b y capacitive effect in response to a u s e r ' s finger o r c o n d u c t o r ' s t o u c h onto the panel o f t h e t o u c h p a d to detect the position the finger o r conductor is touching. Unlike the electromagnetic touchpad, the capacitive touchpad is easy to i n t e r f a c e for users a n d n e e d s n o t a p o w e r - c o n s u m e d i n p u t pen. O n t h e o t h e r h a n d , i n t e r f a c i n g o n t o t h e c a p a c i t i v e t o u c h p a d requires no focused pressed p o i n t as that to the r e s i s t i v e t o u c h p a d a n d thus g i v e s t h e c a p a c i t i v e t o u c h p a d a l o n g e r lifetime. Moreover, t h e c a p a c i t i v e t o u c h p a d h a s simple construction, f e w e r components, a n d h i g h e r p r o d u c t i o n yield, a n d as a result, l o w e r cost is achieved for mass p r o d u c t i o n thereby. B y t h e a f o r e m e n t i o n e d i l l u s t r a t i o n , obviously, t h e c a p a c i t i v e t o u c h p a d has m o r e a d v a n t a g e s t h a n t h e o t h e r t w o . I f t h e capacitive touchpad is modified to be integrated w i t h m o r e input functions, such as keyboard a n d handwriting, a lowcost a n d easy-to-use i n p u t interface c o u l d b e provided.

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B R I E F D E S C R I P T I O N OF T H E D R A W I N G S
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T h e s e a n d o t h e r objects, features a n d a d v a n t a g e s o f t h e present invention will b e c o m e apparent to t h o s e skilled in t h e art u p o n c o n s i d e r a t i o n o f t h e following d e s c r i p t i o n o f t h e preferred embodiments o f the present invention t a k e n in c o n j u n c t i o n w i t h t h e a c c o m p a n y i n g drawings, i n which: FIG. 1 is a schematic diagram o f a capacitive touchpad according to t h e present invention a n d its key, handwriting a n d m o u s e modes; FIG. 2 is a n e m b o d i m e n t o f the present invention applied for a c o m p u t e r k e y b o a r d ; FIG. 3 is a schematic d i a g r a m o f a capacitive touchpad o f t h e p r e s e n t i n v e n t i o n w i t h a b a c k l i g h t illumination; FIG. 4 is a schematic d i a g r a m o f a capacitive touchpad o f t h e p r e s e n t i n v e n t i o n w i t h a frontlight illumination; a n d FIG. 5 shows a schematic d i a g r a m o f t h e c o n s t r u c t i o n o f a t o u c h p a d a n d t h e o p e r a t i o n a l p r i n c i p l e thereof. D E T A I L E D D E S C R I P T I O N OF T H E INVENTION

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FIG. 1 is a n e m b o d i m e n t o f the present invention. A t o u c h p a d 1 0 c o m p r i s e s a p a n e l 1 2 f o r fingers o r c o n d u c t o r s to t o u c h thereto for input, a m o d e switch pattern 1 4 o n t h e panel 1 2 to switch the capacitive touchpad 1 0 to key, h a n d w r i t i n g o r m o u s e m o d e s b y t o u c h i n g thereon, v i r t u a l key regions 16, 18 a n d 20 defined o n the panel 12, a n d a liquid crystal display (LCD) 22 to display the input data from said virtual key regions 16, 1 8 a n d 20. Those skilled in t h e art o f t h e c a p a c i t i v e t o u c h p a d u n d e r s t a n d t h a t t h e construction o f t h e panel 1 2 m a i n l y comprises a n insulator p l a t e o n t h e top s u r f a c e a n d a b o t t o m s u b s t r a t e f o r m e d w i t h a c o n d u c t o r wiring thereon. T h e c o n d u c t o r wiring c a n be m a d e o f metal o r o t h e r conductive materials, such as indium t i n o x i d e (ITO), a n d t h e s u b s t r a t e c a n b e a p r i n t e d c i r c u i t b o a r d (PCB), a m e m b r a n e , o r a t r a n s p a r e n t substrate. T h e h a r d w a r e structure o f the conventional panel is not t h e feature o f t h e p r e s e n t invention, a n d a c o n v e n t i o n a l p a n e l c a n b e modified to b e the h a r d w a r e for the invented touchpad. W h e n the touchpad 1 0 is switched to the key mode, the numbers, " # " a n d " * " k e y patterns o n t h e virtual k e y r e g i o n 16, t h e " D i a l " , " C o r r e c t " a n d u p / d o w n f u n c t i o n k e y p a t t e r n s o n t h e k e y r e g i o n 18, a n d t h e " R e s u m e " , " R e d i a l " a n d " R e s e r v e " function keys patterns o n t h e virtual k e y region 20 are s h o w n as numeric reference 24. T h e arrangement referred b y 24 serves as an input device o r interface o f a telephone, a n d u s e r s c a n i n p u t t h e t e l e p h o n e n u m b e r for

US 7,274,353 B2

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dialing b y t o u c h i n g t h e corresponding k e y p a t t e m s . T h e inputted telephone n u m b e r is s h o w n o n the L C D 22 after p r o c e s s i n g t h e t o u c h e d signals b y s o f t w a r e o r h a r d w a r e . I f the t o u c h p a d 10 is switched to the handwriting mode, the virtual k e y regions 1 6 a n d 20 b e c o m e a handwriting r e g i o n 25, corporating w i t h the "Input", "Correct", " F o n t " a n d " C h o o s e " function patterns o n t h e virtual k e y r e g i o n 18, as s h o w n b y n u m b e r 26. This arrangement provides users for h a n d w r i t i n g input. U s e r s w r i t e o n t h e i r i n p u t d a t a o r d r a w i n g s b y fingers o r c o n d u c t o r s i n t h e h a n d w r i t i n g r e g i o n . A f t e r r e c o g n i z e d b y s o f t w a r e o r h a r d w a r e , e.g., r e c o g n i t i o n module, the handwriting input, such as traces, words, a n d s y m b o l s , a r e s h o w n o n t h e L C D 22. By switching the t o u c h p a d 1 0 to the m o u s e mode, t h e virtual k e y r e g i o n 1 6 b e c o m e s a c u r s o r m o v i n g r e g i o n for users to control t h e c u r s o r m o v e m e n t b y t o u c h i n g o n this r e g i o n . F u r t h e r m o r e , t h e v i r t u a l k e y r e g i o n 18 b e c o m e s a v e r t i c a l s c r o l l bar, a n d t h e v i r t u a l k e y r e g i o n 2 0 b e c o m e s a horizontal scroll bar, as s h o w n b y numerous 28 in FIG. 1. T h e v e r t i c a l a n d h o r i z o n t a l scroll bars p r o v i d e d b y t h e v i r t u a l k e y r e g i o n s 1 8 a n d 20 s i m u l a t e t h e f u n c t i o n t h a t a m o u s e scrolls a w i n d o w vertically a n d horizontally, as t h o s e i n M i c r o s o f t Office w o r d p r o c e s s i n g s o f t w a r e . F u r t h e r , a j u d g m e n t m o d u l e c a n b e further a d d e d to d e t e r m i n e t h e n u m b e r o f f i n g e r s t o u c h i n g o n t h e p a n e l 12, a n d t h e r e b y different instructions c a n be p e r f o r m e d according to the n u m b e r o f t h e fingers. F o r e x a m p l e , a t o u c h i n g o f t w o fingers r e p r e s e n t s a l e f t c l i c k o n a m o u s e , a n d a t o u c h i n g o f t h r e e fingers r e p r e s e n t s a r i g h t c l i c k o n a m o u s e . I n o t h e r embodiments, t h e a r r a n g e m e n t o f t h e virtual k e y regions o f the panel 1 2 i n t h e k e y m o d e c a n b e a c o m p u t e r k e y b o a r d 30, as s h o w n in FIG. 2. L i g h t s o u r c e c a n b e f u r t h e r p r o v i d e d f o r t h e p a n e l 12. FIG. 3 s h o w s a c a s e w h e r e t h e p a n e l 1 2 o f t h e c a p a c i t i v e t o u c h p a d is transparent, such as glass, a n d a backlight 32 is p r o v i d e d f o r t h e p a n e l 1 2 from t h e b a c k s i d e o f t h e panel 1 2 to improve the words o r drawings displayed thereon. I n FIG. 4, it is p r o v i d e d a frontlight 34 for the panel 1 2 from the frontside o f the panel 1 2 to enhance the words o r drawings display. Usually, the key, w o r d a n d symbol patterns to represent any n u m b e r o r function keys a r e p r i n t e d o n t h e i n s u l a t o r p l a t e o n t h e t o p o f t h e p a n e l 12. H o w e v e r , v a r i a t i o n s o r modifications are p o s s i b l e w i t h i n t h e s c o p e o f t h e p r e s e n t invention. A p p l i c a t i o n f o r i n p u t d e v i c e o r i n t e r f a c e o f a n y apparatus, such as m o b i l e phone, public Internet phone, c o m p u t e r k e y b o a r d , P D A , i n f o r m a t i o n a p p l i a n c e (IA) a n d e l e c t r o n i c dictionary, t h e a d v a n t a g e s o f t h e p r e s e n t i n v e n t i o n b e c o m e m u c h clearly. E s p e c i a l l y u s i n g o n c e l l u l a r p h o n e s , t h e i n p u t function o f the p h o n e s c a n b e i n c r e a s e d enormously w i t h decreased thickness, a n d t h e cost is cheaper compared to the k e y p a d m o d u l e i n conventional cellular phones. While t h e p r e s e n t i n v e n t i o n h a s b e e n d e s c r i b e d i n conj u n c t i o n w i t h preferred embodiments thereof, it is evident t h a t m a n y a l t e m a t i v e s , m o d i f i c a t i o n s a n d v a r i a t i o n s will b e apparent to those skilled in the art. Accordingly, it is intended to e m b r a c e all such alternatives, modifications a n d variations that fall w i t h i n the spirit a n d scope t h e r e o f as set forth i n t h e a p p e n d e d claims. What is c l a i m e d is: 1. A capacitive t o u c h p a d integrated w i t h key a n d handw r i t i n g functions, c o m p r i s i n g : a p a n e l for t o u c h inputting; a first p a t t e m o n said panel for representing a m o d e switch to switch said touchpad b e t w e e n a k e y m o d e a n d a h a n d w r i t i n g mode; a p l u r a l i t y o f r e g i o n s defined o n said panel; a n d

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a plurality o f second patterns o n said plurality o f regions for o p e r a t i o n i n s a i d k e y a n d h a n d w r i t i n g m o d e s ; w h e r e i n s a i d p a n e l comprises: a substrate s e l e c t e d from t h e g r o u p c o n s i s t i n g o f PCB, m e m b r a n e a n d t r a n s p a r e n t plate; a c o n d u c t o r w i r i n g o n s a i d substrate; a n d a n i n s u l a t o r c o v e r e d o n s a i d c o n d u c t o r wiring. 2. A capacitive touchpad o f claim 1, wherein said cond u c t o r w i r i n g c o m p r i s e s a n ITO. 3. A capacitive touchpad o f claim 1, w h e r e i n said insulator is transparent. 4. A m o b i l e telephone characterized in a capacitive touchp a d i n c l u d e d thereon, s a i d c a p a c i t i v e t o u c h p a d comprising: a p a n e l for t o u c h inputting; a first pattern o n said panel for representing a m o d e switch to switch said touchpad b e t w e e n a k e y m o d e a n d a h a n d w r i t i n g mode; a p l u r a l i t y o f r e g i o n s defined o n s a i d panel; a n d a plurality o f second patterns o n said plurality o f regions for o p e r a t i o n i n s a i d k e y a n d h a n d w r i t i n g m o d e s ; w h e r e i n s a i d p a n e l comprises: a substrate s e l e c t e d from t h e g r o u p c o n s i s t i n g o f PCB, m e m b r a n e a n d t r a n s p a r e n t plate; a c o n d u c t o r w i r i n g o n s a i d substrate; a n d a n i n s u l a t o r c o v e r e d o n s a i d c o n d u c t o r wiring. 5. A mobile telephone o f claim 4, w h e r e i n said conductor w i r i n g c o m p r i s e s a n ITO. 6. A mobile telephone o f claim 4, w h e r e i n said insulator is transparent. 7. A capacitive t o u c h p a d integrated w i t h key a n d m o u s e functions, c o m p r i s i n g : a p a n e l for t o u c h inputting; a first pattern o n said panel for representing a m o d e switch to switch said touchpad b e t w e e n a k e y m o d e a n d a m o u s e mode; a p l u r a l i t y o f r e g i o n s defined o n s a i d panel; a n d a plurality o f second patterns o n said plurality o f regions for o p e r a t i o n i n s a i d k e y a n d m o u s e m o d e s ; w h e r e i n said panel comprises: a substrate s e l e c t e d f r o m t h e group c o n s i s t i n g o f PCB, m e m b r a n e a n d t r a n s p a r e n t plate; a c o n d u c t o r w i r i n g o n s a i d substrate; a n d a n i n s u l a t o r c o v e r e d o n s a i d c o n d u c t o r wiring. 8. A capacitive touchpad o f claim 7, wherein said cond u c t o r w i r i n g c o m p r i s e s a n ITO. 9. A capacitive touchpad o f claim 7, w h e r e i n said insulator is transparent. 10. A c a p a c i t i v e t o u c h p a d i n t e g r a t e d w i t h m o u s e a n d h a n d w r i t i n g functions, c o m p r i s i n g : a p a n e l for t o u c h inputting; a first pattern o n said panel for representing a m o d e switch to switch said t o u c h p a d b e t w e e n a m o u s e m o d e a n d a h a n d w r i t i n g mode; a p l u r a l i t y o f r e g i o n s defined o n s a i d panel; a n d a plurality o f second patterns o n said plurality o f regions for o p e r a t i o n i n s a i d m o u s e a n d h a n d w r i t i n g m o d e s ; w h e r e i n said panel comprises: a substrate s e l e c t e d f r o m t h e group c o n s i s t i n g o f PCB, m e m b r a n e a n d t r a n s p a r e n t plate; a c o n d u c t o r w i r i n g o n s a i d substrate; a n d a n i n s u l a t o r c o v e r e d o n s a i d c o n d u c t o r wiring. 11. A capacitive touchpad o f claim 10, w h e r e i n said c o n d u c t o r w i r i n g c o m p r i s e s a n ITO. 12. A c a p a c i t i v e t o u c h p a d o f c l a i m 10, w h e r e i n said insulator is transparent.

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