TWI270032B

TWI270032B - Liquid crystal display device

Info

Publication number: TWI270032B
Application number: TW93135384A
Authority: TW
Inventors: Chi-Mao Hung; Chien-Hung Chen
Original assignee: Au Optronics Corp
Priority date: 2004-06-14
Filing date: 2004-11-18
Publication date: 2007-01-01
Also published as: JP2006003894A; TW200540754A; CN1645463A

Abstract

A liquid crystal display device that comprises a panel, a timing controller for providing control signals to the panel, a video chip for receiving video signals and providing decoded video signals to the panel, a phase lock loop for providing a reference clock frequency, and a source driver for receiving the control signals and video signals to drive the panel, wherein the timing controller, the video chip and the phase lock loop are incorporated into the source driver in an integrated circuit.

Description

12700321270032

【發明所屬之技術領域】本發明係有關於一稽動液晶顯示裝置之積體恭J肢電路，特別是有關於一種顯【先前技術】 ' 电路。第1圖顯示習知液晶_ 一壯置10包括一液晶顯示面板、不衣置之方塊圖。液晶顯示装示面板1 2具有閘極驅動Μ 驅動系統1 4 °液晶顯 ^ , 的12 —2及源極驅動器12-4。驅動系 △ 性印刷電路板(flexible printedBACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrated circuit of a liquid crystal display device, and more particularly to an [prior art] circuit. Fig. 1 shows a conventional liquid crystal _ a frame 10 comprising a liquid crystal display panel and an unfitted frame. The liquid crystal display panel 1 2 has a gate drive Μ drive system 1 4 ° liquid crystal display, 12-2 and a source driver 12-4. Drive system △ printed circuit board (flexible printed

= 1111 ;FPC)16上，該敕性印刷電路板16在液晶顯示面板2的外部。驅動系統丨4具有電源電路14_丨、影像晶片 Μ 2 日t 序產生 g§14-3、鎖相迴路（phaSe lock loop ; PLL) 1 4-4、共用電壓電路14-5、發光二極體（light emitting diode ; LED)驅動器14-6、以及序列可程式介面 (s e r i a 1 p r 〇 g r a m m a b 1 e i n t e r f a c e ; S PI I / F) 1 4 - 7。驅動糸統1 4提供影像信號r、g、B、控制信號Η、V、時脈信號 Clockl 〜Clock 3、以及電源信號 VGH、VGL、VCC、GND 予液晶顯示面板1 2。液晶顯示裝置1 0係操作在具有不同電壓位準的多電壓環境中，例如，15V、-1 0V、及5V。這些不同的電壓位準係由外部裝置所產生的，而外部裝置可能會造At 1111; FPC) 16, the flexible printed circuit board 16 is outside the liquid crystal display panel 2. The driving system 丨4 has a power supply circuit 14_丨, an image chip Μ 2 day t generation g § 14-3, a phase locked loop (phaSe lock loop; PLL) 1 4-4, a common voltage circuit 14-5, a light emitting diode Light emitting diode (LED) driver 14-6, and serial programmable interface (seria 1 pr 〇grammab 1 einterface; S PI I / F) 1 4 - 7. The driving system 14 provides image signals r, g, B, control signals Η, V, clock signals Clock1 to Clock 3, and power signals VGH, VGL, VCC, GND to the liquid crystal display panel 12. The liquid crystal display device 10 operates in a multi-voltage environment having different voltage levels, for example, 15V, -10 V, and 5V. These different voltage levels are generated by external devices, and external devices may make

成管理成本的增加。此外，由於電源電路14 — 1、影像晶片 14 - 2、時序產生器1 4 _ 3、鎖相迴路1 4 — 4、共用電壓電路 14-5、發光二極體驅動器14-6、以及序列可程式介面14一 7均為不同的積體電路，故造成使用空間的增加。【發明内容】Increased management costs. In addition, since the power supply circuit 14-1, the image chip 14-2, the timing generator 1 4 _ 3, the phase locked loop 14-4, the common voltage circuit 14-5, the light emitting diode driver 14-6, and the sequence can be The program interfaces 14-7 are different integrated circuits, resulting in an increase in the use space. [Summary of the Invention]

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五、發明說明（2) 本發明提供一種液晶顯示裝詈控制器、一影像日曰片包括一面板、一時庠冢日日片、一鎖相迴路、乃一、店此时序序控制器提供控制信號予面板。影傻曰f極驅動器。時毒碼的衫像h唬予面板。鎖相迴路去t L諕亚 t °源極驅動器接收控制信號及影像t ί >、參考時脈頻，制11、影像晶片、及鎖相迴液晶顯示裝置亦包括：!、：液；，示裝置。本發明之 ―,本發明另提供-種液晶顯示裝置，包括：f中。 =糸'统。本發明之驅動系統包括巧以及晶片、一鎖相迴路、以及一源極驅動器以二一面板。影像晶片接收影像信號並動及ί:;;提供參考時脈頻率= 丄 ν 1冢15唬，以驅動面板。如予、舍明另提供一種液晶顯示裝置，包括，-面被早黾壓源、以及一驅動系餘如板、一所提供之電源並驅動面板、、，,區：m:接收單電遷源器、一時序控制器、一影像曰矿、$ ’ 〇' ·—同步隔灕尽/ I豕晶片、一鎖相遇路、 ::二為。同步隔離器用以隔號制ς 影像信號予面板。鎖相迴路=接收衫像秸諕亚提供解碼的益接收控制信號及影像信號，以原極驅動時序控制器、鎖相迴路、及为==人同步隔離器、 /原極驅動裔均合併於一積體電V. Inventive Description (2) The present invention provides a liquid crystal display device controller, an image sundial including a panel, a day and a day, a phase-locked loop, and a store, the timing sequence controller provides control Signal to the panel. Shadow silly f-driver. The toxic code shirt is like a h唬 panel. The phase-locked loop goes to the t L諕亚t° source driver to receive the control signal and the image t ί >, the reference clock frequency, the system 11, the image chip, and the phase-locked back liquid crystal display device also include: !, : liquid; Display device. In the present invention, the present invention further provides a liquid crystal display device comprising: f. =糸' system. The drive system of the present invention includes a chip and a wafer, a phase locked loop, and a source driver in two panels. The image chip receives the image signal and transmits the reference clock frequency = ν ν 1冢15唬 to drive the panel. For example, Yuming and Shuming also provide a liquid crystal display device comprising: a face-to-face early pressure source, and a drive system such as a board, a supplied power source and a driving panel, and, m: receiving a single power Source, a timing controller, an image 曰 mine, $ ' 〇 ' · - synchronous isolation / I 豕 wafer, a lock phase encounter, :: two. The sync isolator is used to separate the image signal from the panel. Phase-locked loop=Receiving shirts like the 諕諕亚 provide decoded receive control signals and image signals, with the original drive timing controller, phase-locked loop, and == human sync isolator, / original pole drive are combined An integrated body

0632-A50264TWf(5.0) ； AU0310066 ； JOANNE.ptd 頁 1270032 五、發明說明（3) 路中。為讓本發明之上述和其他目的、特徵、和優點能更明顯易懂，下文特舉出較佳實施例，並配合所附圖式，作詳細說明如下：【實施方式】第2圖顯示本發明之液晶顯示裝置之第一實施例。液晶顯示裝置30包括液晶顯示面板32、驅動系統34、以及軟性印刷電路板3 6。液晶顯示面板3 2具有閘極驅動器3 2 - 2 及源極驅動器32-4。驅動系統34具有電源電路34-1、影像晶片34-2、時序產生器34-3、鎖相迴路34-4、共用電壓電路34-5、發光二極體驅動器34-6、以及序列可程式介面 3 4 - 7。軟性印刷電路板3 6提供類比信號R、G、B、同步信號Hs、Vs、以及電源信號VCC、GND。在本實施例中，影像晶片34-2、時序產生器34-3、鎖相迴路34-4被合併到至少一個源極驅動器3 2 -4中，用以整合成一積體電路。另外，共用電壓電路34-5、發光二極體驅動器34-6、或序列可程式介面3 4-7亦可被合併至該積體電路中。驅動系統34 更包括一同步隔離器（未圖示），其亦可合併至該積體電路中。第3圖顯示本發明之液晶顯示裝置之第二實施例。液晶顯示裝置5 0包括一液晶顯示面板5 2、驅動系統54、以及電壓源5 6。驅動系統5 4具有電源電路5 4 -1、影像晶片5 4 -2、時序產生器54-3、鎖相迴路54-4、共用電壓電路5 4-5、發光二極體驅動器54-6、序列可程式介面54-7、以及0632-A50264TWf(5.0) ; AU0310066 ; JOANNE.ptd Page 1270032 V. Description of invention (3) Road. The above and other objects, features and advantages of the present invention will become more <RTIgt; A first embodiment of the liquid crystal display device of the invention. The liquid crystal display device 30 includes a liquid crystal display panel 32, a drive system 34, and a flexible printed circuit board 36. The liquid crystal display panel 32 has a gate driver 3 2 - 2 and a source driver 32-4. The drive system 34 has a power supply circuit 34-1, an image chip 34-2, a timing generator 34-3, a phase locked loop 34-4, a common voltage circuit 34-5, a light emitting diode driver 34-6, and a sequence programmable Interface 3 4 - 7. The flexible printed circuit board 36 provides analog signals R, G, B, synchronization signals Hs, Vs, and power supply signals VCC, GND. In the present embodiment, the image wafer 34-2, the timing generator 34-3, and the phase locked loop 34-4 are incorporated into at least one of the source drivers 3 2 - 4 for integration into an integrated circuit. In addition, a common voltage circuit 34-5, a light emitting diode driver 34-6, or a serial programmable interface 34-7 can also be incorporated into the integrated circuit. The drive system 34 further includes a synchronous isolator (not shown) that can also be incorporated into the integrated circuit. Fig. 3 shows a second embodiment of the liquid crystal display device of the present invention. The liquid crystal display device 50 includes a liquid crystal display panel 52, a drive system 54, and a voltage source 56. The driving system 54 has a power supply circuit 5.4, an image chip 5.4, a timing generator 54-3, a phase locked loop 54-4, a common voltage circuit 554-5, and a light emitting diode driver 54-6. Sequence programmable interface 54-7, and

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同$隔離器54-8。電壓源56提供一電壓信號，其位於一電壓絶，中，例如，約在丨· 8V至…之間。電源電路“ — I可為一脈寬調變器（pulse width m〇dula1：〇r ;pWM)，其接收來胃自電壓源56的電壓信號，並提供調變後的電壓位準予液晶顯不面板52。舉例而言，調變後的電壓位準大約為15V、 7· 5V、及-1 〇 V 〇。影像晶片54-2可為一影像解碼器，其接收具有類比信號R G B的衫像仏號、影像/色度分離信號（1 u m丨n a n c e /chrominance ;YC)、複合影像信號（c〇mp〇site vlde〇 signal ; CVS)、以及色彩信號YCbCr，並提供交替的類比化、G、B予液晶顯示面板52。時序產生器54 —3提供控制 > 號予液晶顯示面板5 2。鎖相迴路5 4 - 4提供一參考時序頻率予影像晶片54-2及同步隔離器54-8。共甩電壓電路 54-5可為一共用電壓放大器（c〇mm〇n v〇itage )’其在線反轉的期間，提供共用電用電壓信號予液晶顯示面板52。發光二極體驅動器54-6驅動光源58，用以點亮液晶顯示面板52。序列可程式介面54-7可為一 I2C匯流排介面，其接收I2C信號S^c，用以設定操作頻率。同步隔離器5 4 - 8從垂直同步信號中隔離出水平同步信號。本發明之影像晶片5 4 - 2、時序產生器5 4 - 3、鎖相迴路 5 4 - 4可被合併至液晶顯示裝置5 〇的至少一源極驅動器（未圖示）中，以整合成一積體電路。另外，電源電路5 、共用電壓電路5 4 - 5、發光二極體驅動器5 4 — 6、序列可程式 w面5 4 _ 7、或同步隔肖隹器5 4 — 8亦可被合併至該積體電Same as $ isolators 54-8. Voltage source 56 provides a voltage signal that is located in an electrical voltage, for example, between about V8V to about. The power circuit "-I can be a pulse width modulator (pulm width m〇dula1: 〇r; pWM), which receives the voltage signal from the stomach voltage source 56, and provides the modulated voltage level to the liquid crystal display. Panel 52. For example, the modulated voltage levels are approximately 15V, 7.5V, and -1 〇V 〇. Image wafer 54-2 can be an image decoder that receives a shirt image having an analog signal RGB. Nickname, image/chroma separation signal (1 um丨nance / chrominance; YC), composite image signal (c〇mp〇site vlde〇signal; CVS), and color signal YCbCr, and provide alternating analogy, G, B to the liquid crystal display panel 52. The timing generator 54-3 provides a control > to the liquid crystal display panel 52. The phase locked loop 54-4 provides a reference timing frequency to the image wafer 54-2 and the sync isolator 54-8. The common voltage circuit 54-5 can be a common voltage amplifier (c〇mm〇nv〇itage)' during the online inversion period, providing a common electrical voltage signal to the liquid crystal display panel 52. The LED driver 54- 6 driving light source 58 for illuminating the liquid crystal display panel 52. Sequence The programming interface 54-7 can be an I2C bus interface that receives the I2C signal S^c for setting the operating frequency. The synchronous isolator 5 4-8 isolates the horizontal synchronizing signal from the vertical synchronizing signal. 5 4 - 2, timing generator 5 4 - 3, phase-locked loop 5 4 - 4 can be incorporated into at least one source driver (not shown) of liquid crystal display device 5 to be integrated into an integrated circuit. , the power circuit 5, the common voltage circuit 5 4 - 5, the LED driver 5 4-6, the sequence programmable w face 5 4 _ 7, or the sync separator 5 4 - 8 can also be merged into the product Body power

0632-A50264TWf(5.0) ； AU0310066 ； JOANNE.ptd 第 9 頁 1270032 五、發明說明（5) 路。此外，透過上述的整合後，液晶顯示裝置5 0可操作在一單電壓源58的狀態下，使得電源消耗降低並改善電源管理。雖然本發明已以較佳實施例揭露如上，然其並非用以限定本發明，任何'熟習此技藝者，在不脫離本發明之精神和範圍内，當可作些許之更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。0632-A50264TWf(5.0) ; AU0310066 ; JOANNE.ptd Page 9 1270032 V. Description of invention (5) Road. Further, after the integration described above, the liquid crystal display device 50 can be operated in a state of a single voltage source 58, so that power consumption is reduced and power management is improved. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and it is to be understood that those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

0632-A50264TWf(5.0) ； AU0310066 ； JOANNE.ptd 第10頁 1270032 圖式簡早說明第1圖顯示習知液晶顯示裝置之方塊圖。第2圖顯示本發明之液晶顯示裝置之第一實施例。第3圖顯示本發明之液晶顯示裝置之第二實施例。【主要元綿符號說明】 10、30、50〜液晶顯示裝置； 1 2、3 2、5 2〜液晶顯示面板； 1 2 - 2、3 2 - 2〜閘極驅動器； 1 2 - 4、3 2 - 4〜源極驅動器； 1 4、3 4、5 4〜驅動系統； 1 4 -1、3 4 - 1、5 4 -1〜電源電路； 14-2、34-2、54-2〜影像晶片； 14-3、34-3、54-3〜時序產生器； 1 4 - 4、3 4 - 4、5 4 - 4〜鎖相迴路； 14-5、34-5、54-5〜共用電壓電路； 14-6、34-6、54 - 6〜發光二極體驅動器； 14-7、34-7、54-7〜序列可程式介面； 1 6、3 6〜該軟性印刷電路板； 54-8〜同步隔離器； 5 δ〜電壓源； 5 8〜光源。0632-A50264TWf(5.0) ; AU0310066 ; JOANNE.ptd Page 10 1270032 Schematic description of the drawings Fig. 1 shows a block diagram of a conventional liquid crystal display device. Fig. 2 shows a first embodiment of the liquid crystal display device of the present invention. Fig. 3 shows a second embodiment of the liquid crystal display device of the present invention. [Major yuan cotton symbol description] 10, 30, 50 ~ liquid crystal display device; 1 2, 3 2, 5 2 ~ liquid crystal display panel; 1 2 - 2, 3 2 - 2 ~ gate driver; 1 2 - 4, 3 2 - 4 ~ source driver; 1 4, 3 4, 5 4 ~ drive system; 1 4 -1, 3 4 - 1, 5 4 -1 ~ power circuit; 14-2, 34-2, 54-2~ Image chip; 14-3, 34-3, 54-3~ timing generator; 1 4 - 4, 3 4 - 4, 5 4 - 4~ phase-locked loop; 14-5, 34-5, 54-5~ Shared voltage circuit; 14-6, 34-6, 54-6~ LED driver; 14-7, 34-7, 54-7~ sequence programmable interface; 1 6, 3 6~ the flexible printed circuit board 54-8~ synchronous isolator; 5 δ ~ voltage source; 5 8 ~ light source.

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Claims

1270032 案號 93135384 六、申請專利範圍卞年％正本:1270032 Case No. 93135384 VI. Scope of application for patents 卞Year % Original:

一種液晶顯示裝置，包括·· 像信號動該面其併於該2. 括一單 3. 括一電 4. 括一共 5. 括一發6. 括一序 7. 面板；時序控影像晶予該面鎖相迴源極驅板；中，該原、極驅如申請電壓源如申請源晶片如申請用電壓如申請光二極如申請列可程如申請括一同步隔離 8. —種液一面板；制器，片，接板；路，提動器，時序控動器中專利範，用以專利範 ’合併專利範電路，專利範體驅動專利範式介面專利範器，合晶顯示以及提供複數控制信號予該面板；收複數影像信號並提供複數解碼的影供一參考時脈頻率；以及接收該等控制信號及影像信號，以驅制器、影像晶片、及鎖相迴路均被合，用以整合成一積體電路。圍第1項所述之液晶顯示裝置，更包供電源予該液晶顯示裝置。圍第1項所述之液晶顯示裝置，更包於該積體電路中。圍第1項所述之液晶顯示裝置，更包合併於該積體電路中。，第1項所述之液晶顯示裝置，更包器，合併於該積體電路中。圍第1項所述之液晶顯示裝置，更包 ’合併於該積體電路中。圍第1項所述之液晶顯示裝置，更包併於該積體電路中。裝置，包括：A liquid crystal display device comprising: a signal to move the surface and the same as in the 2. 2. a single 3. including a battery 4. a total of 5. including a hair 6. including a sequence 7. panel; timing control image crystal The surface locks back to the source drive board; in the original, the pole drive, such as applying for a voltage source, such as applying for a source chip, such as applying for a voltage, such as applying for a photodiode, such as applying for a process, such as applying for a synchronous isolation. Panel; controller, chip, board; road, actuator, timing controller in the patent, for the patent Fan 'combined patent circuit, patent model drive patent paradigm interface patent, display and provide a plurality of control signals are provided to the panel; the plurality of image signals are recovered and a plurality of decoded images are provided for a reference clock frequency; and the control signals and the image signals are received, and the driver, the image chip, and the phase locked loop are all combined. Used to integrate into an integrated circuit. The liquid crystal display device according to Item 1 further includes a power supply to the liquid crystal display device. The liquid crystal display device of the first aspect is further included in the integrated circuit. The liquid crystal display device of the above item 1 is further incorporated in the integrated circuit. The liquid crystal display device of the first aspect, further comprising a package, is incorporated in the integrated circuit. The liquid crystal display device of the first item is further incorporated in the integrated circuit. The liquid crystal display device of the first item is further included in the integrated circuit. Devices, including:

J270032案號―沾猶日修正六、_請專利範圍一驅動系統，用以驅動該面板，該驅' -=控制器，提供複數控制信號予該面：包括一#像晶片，接收複數影像信號並提供像信號予該面板； ’、是數解碼的影一鎖相迴路，提供一參考時脈頻率；以及二：極；Ϊ器’接收該等控制信號及影像信號，以驅動=動時序控制器、影像晶片、鎖相迴路、及源極驅動裔均被合併至一積體電路中。ttr請專利範圍第8項所述之液晶顯示裝置，更包括一電源曰曰片，合併於該積體電路中。 10. 如申請專利範圍第8項所述之液晶顯示置，共用電壓電路，合併於該積體電路中。 11. 如申請專利範圍第8項所述之液晶置，更發光二極體驅動器，合併於該積體電^ 1 2 ·如申請專利範圍第8項所述之液晶狀括-序列可程式介面，纟併於該積體電路；7 心 13·如申請專利範圍第8項所述之液晶勺同步隔離器’合併於該積體電路中，員不裝*更包1 4 · 一種液晶顯示裝置，包括：一面板；一單電壓源，用以提供電源；以及一驅動系統，甩以接收該單電壓源所供之，驅動該面板，該驅動系統包括：衩彳，、之電源並一同步隔離器，用以隔離複數同步信鞔；括括括 0632-A50264TWF1(AU0310066) J oanne.pt c 第13頁 1270032 案號 93135384 Λ_Β 曰修正六、申請專利範圍一時序控制器，提供複數控制信號予該面板；一影像晶片，接收複數影像信號並提供複數解碼的影像信號予該面板；一鎖相迴路，提供一參考時脈頻率；以及一源極驅動器，接收該等控制信號及影像信號，以驅動該面板；其中，該同步隔離器、時序控制器、鎖相迴路、及源極驅動器合併於一積體電路中。 1 5 .如申請專利範圍第1 4項所述之液晶顯示裝置，其中，該影像晶片合併於該積體電路中。 1 6 .如申請專利範圍第1 4項所述之液晶顯示裝置，更包括一電源晶片，合併於該積體電路中。 1 7 .如申請專利範圍第1 4項所述之液晶顯示裝置，更包括一共用電壓電路，合併於該積體電路中。 1 8 .如申請專利範圍第1 4項所述之液晶顯示裝置，更包括一發光二極體驅動器，合併於該積體電路中。 1 9.如申請專利範圍第1 4項所述之液晶顯示裝置，更包括一序列可程式介面，合併於該積體電路中。J270032 Case No. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ And providing a signal to the panel; ', is a digital decoding phase-locked loop, providing a reference clock frequency; and two: pole; the device 'receives the control signal and the image signal to drive = dynamic timing control The device, the image chip, the phase-locked loop, and the source driver are all combined into one integrated circuit. The liquid crystal display device of the eighth aspect of the invention, which further includes a power supply chip, is incorporated in the integrated circuit. 10. The liquid crystal display according to claim 8 of the patent application, the common voltage circuit is incorporated in the integrated circuit. 11. The liquid crystal display according to claim 8 of the patent application, the light-emitting diode driver is incorporated in the integrated circuit. The liquid crystal-sequence programmable interface as described in claim 8 , in the integrated circuit; 7 heart 13 · as shown in the scope of claim 8 of the liquid crystal spoon synchronous isolator 'incorporate in the integrated circuit, the staff does not install * more package 1 4 · a liquid crystal display device The utility model comprises: a panel; a single voltage source for supplying power; and a driving system for receiving the single voltage source to drive the panel, the driving system comprises: 衩彳, a power supply and a synchronization Isolator for isolating complex sync signals; including: 0632-A50264TWF1 (AU0310066) J oanne.pt c Page 13 1270032 Case No. 93135384 Λ_Β 曰 Amendment VI, Patent Range 1 Timing Controller, providing complex control signals to The image chip receives an image signal and provides a plurality of decoded image signals to the panel; a phase locked loop provides a reference clock frequency; and a source driver receives The control signal and the image signal drive the panel; wherein the synchronous isolator, the timing controller, the phase locked loop, and the source driver are combined in an integrated circuit. The liquid crystal display device of claim 14, wherein the image wafer is incorporated in the integrated circuit. The liquid crystal display device of claim 14, further comprising a power supply chip incorporated in the integrated circuit. The liquid crystal display device of claim 14, further comprising a common voltage circuit incorporated in the integrated circuit. The liquid crystal display device of claim 14, further comprising a light emitting diode driver incorporated in the integrated circuit. 1. The liquid crystal display device of claim 14, further comprising a sequence of programmable interfaces incorporated in the integrated circuit.

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