TW566038B - Signal processing unit and electronic apparatus using the same - Google Patents

Signal processing unit and electronic apparatus using the same Download PDF

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Publication number
TW566038B
TW566038B TW90119915A TW90119915A TW566038B TW 566038 B TW566038 B TW 566038B TW 90119915 A TW90119915 A TW 90119915A TW 90119915 A TW90119915 A TW 90119915A TW 566038 B TW566038 B TW 566038B
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Taiwan
Prior art keywords
connector
signal
signal processing
circuit board
tuner section
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TW90119915A
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Chinese (zh)
Inventor
Takeshi Ikeda
Hiroshi Miyagi
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Niigata Seimitsu Co Ltd
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Publication of TW566038B publication Critical patent/TW566038B/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06Receivers
    • H04B1/16Circuits
    • H04B1/26Circuits for superheterodyne receivers
    • H04B1/28Circuits for superheterodyne receivers the receiver comprising at least one semiconductor device having three or more electrodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06Receivers
    • H04B1/16Circuits
    • H04B1/18Input circuits, e.g. for coupling to an antenna or a transmission line
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/64Constructional details of receivers, e.g. cabinets or dust covers
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/18Printed circuits structurally associated with non-printed electric components

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Structure Of Receivers (AREA)

Abstract

The present invention relates to a signal processing unit and electronic apparatus using the same. In the case of mounting a tuner section 3 that applies the prescribed processing to a high frequency signal received from a connector 2 to provide an output of an intermediate frequency signal corresponding to a desired reception frequency and other circuits 4, 5 to process the intermediate frequency signal outputted from the tuner section 3 on the same printed circuit board 1, the tuner section 3 is placed in the vicinity of the connector 2, and the other circuits 4, 5 are placed apart from the connector 2, so as to suppress the disadvantage of unnecessary electromagnetic field emitted on the basis of the high frequency signal received by the connector 2 and given to the circuits 4, 5 other than the tuner section 3, which causes noise disturbance and oscillation. Thus, the need for provision of an electromagnetic shield is eliminated to mount the circuits 3-5 onto the printed circuit board 1 with high density.

Description

566038 Α7 Β7 五、發明説明(1 ) 〔發明所屬之技術領域〕 本發明係關於一種信號處理裝置及使用此信號處理裝 置之電子機器,例如,適合使用於接收電視的播放而實行 預定處理之接收器者。 〔背景技術〕 第1圖係顯示接收電視播放的電視接收機之一般構成 之圖。在第1圖中,將以天線4 1接收之電視播放用之電 波輸入調詣器4 2。調詣器4 2係將從天線4 1輸入之高 頻電視信號,與按所希望接受頻率而控制的局部振盪頻率 之信號混合而生成中頻(以下簡稱爲I F )信號而輸出之 〇 以調諧器4 2所取出之I F訊號爲,以中頻放大器 4 3放大之後,由影像檢波電路4 4影像檢波之同時,由 聲音檢波電路4 5所聲音檢波之。從影像檢波電路4 4所 輸出之信號爲,由影像系統處理電路4 6分離成亮度信號 與顏色信號,進一步實行預定之影像信號處理而成爲影像 信號,向未圖示之CRT及L CD等之顯示裝置輸出。又 ’由聲首系統處理電路4 7實行F Μ解頻等之處理而成爲 聲音信號,適當地放大後向未圖示之揚聲器等。 第2圖係顯示上述調諧器4 2構成之圖。在第2圖中 ’以天線4 1接收之電視播放用之(Ρ - 2 )高頻電視信 號爲頻帶通過濾波器(以下簡稱爲B P F ) 5 1,高頻放 大器(以下簡稱爲R F放大器)5 2,頻帶通過濾波器 本紙張尺度適用中國國家標準(CNS ) Α4規格(210X297公釐) (請先閲讀背面之注意事項再填寫本頁) 訂 經濟部智慧財產局員工消費合作社印製 -4- 經濟部智慧財產局員工消費合作社印製 566038 A7 B7 五、發明説明(2) 5 3而輸入混頻器5 4 —方之輸入端。又按,從頻率變換 用振盪器(以下簡稱爲V CO) 5 5輸出之局部振盪信號 輸入於混頻器5 4之另一方之輸入端。 從上述V C〇5 5所輸出之信號之局部振盪頻率係由 鎖相(以下簡稱爲p L L )電路5 6,按所設定之希望接 收頻率而控制之。混頻器5 4係混合從B P F 5 3所輸出 之高頻電視信號,及從V C 0 5 5所輸出之局部振盪信號 而生成中頻(以下簡稱爲I F )信號,向下一級I F放大 器4 3。又按,也有把I F放大器4 3包含在調諧器4 2 內的情形。 近年來,以快速地進行有關電視機之小型化及薄型化 之開發。其中,有進行調諧器之集體化,也有開發將以往 以半導體集體電路之湊配組件實現之頻帶通過濾波器, R F放大器,混頻器電路等之無源元件,與數位電路之566038 Α7 Β7 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a signal processing device and an electronic device using the signal processing device. For example, the invention is suitable for receiving a television broadcast and performing predetermined processing.器 者。 Applicants. [Background Art] Fig. 1 is a diagram showing a general configuration of a television receiver that receives television broadcasts. In Fig. 1, a radio wave for television broadcasting received by the antenna 41 is input to the tuner 42. The tuner 4 2 is a high-frequency television signal input from the antenna 41 and mixed with a signal of a local oscillation frequency controlled according to a desired reception frequency to generate an intermediate frequency (hereinafter referred to as IF) signal and output 〇 for tuning. The IF signal taken out by the detector 42 is amplified by the intermediate frequency amplifier 43, and the image is detected by the image detection circuit 44, while the sound is detected by the sound detection circuit 45. The signal output from the image detection circuit 44 is divided into a brightness signal and a color signal by the image system processing circuit 46, and further performs predetermined image signal processing to become an image signal. Display device output. Also, the sound head system processing circuit 47 performs processing such as FM de-frequencying to become a sound signal, and amplifies it to a speaker (not shown) or the like as appropriate after amplification. Fig. 2 is a diagram showing the structure of the tuner 42. In Figure 2, 'the high-frequency television signal (P-2) for television broadcasting received by antenna 4 1 is a band-pass filter (hereinafter referred to as BPF) 5 1, high-frequency amplifier (hereinafter referred to as RF amplifier) 5 2. Bandpass filter This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page) Order printed by the Intellectual Property Bureau of the Ministry of Economic Affairs Consumer Cooperatives -4- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 566038 A7 B7 V. Description of the invention (2) 5 3 and input mixer 5 4 — The input terminal of the party. Press again, and the local oscillation signal output from the frequency conversion oscillator (hereinafter referred to as V CO) 5 5 is input to the other input terminal of the mixer 5 4. The local oscillation frequency of the signal output from the above-mentioned V C05 is controlled by a phase-locked (hereinafter abbreviated as p L L) circuit 56 according to the set desired receiving frequency. The mixer 5 4 is a mixture of the high-frequency television signal output from BPF 5 3 and the local oscillation signal output from VC 0 5 5 to generate an intermediate frequency (hereinafter referred to as IF) signal, which is transmitted to the next-stage IF amplifier 4 3 . Pressing it again may include the IF amplifier 4 3 in the tuner 4 2. In recent years, development of miniaturization and thinning of televisions has been rapidly performed. Among them, the collectiveization of tuners, and the development of passive components such as filters, RF amplifiers, mixer circuits, and digital circuits that pass bands that were previously implemented with semiconductor collective circuits as components.

P L L電路一起匯集在一個半導體基板(晶片)之L S I 〇 然而,如上述,雖然將調詣器之集體化進行到某些程 度,然而,關於構成電視機所需要之其他機能組件則其積 體化尙爲不足。因此,現在是將如上述積體化在一個半導 體基板上之調諧器部之晶片,及對其輸出實行影像系統之 處理之影像系統處理電路,及實行聲音系統之處理之聲音 系統處理電路等予以模組化在主機板上而使用之。 又按,在電視機中,因在調諧器部處理高頻信號的關 係,有會放出不必要之電磁場的情形。該時,其他的電路 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ297公釐) 11111 11 n I 訂 I I (請先閱讀背面之注意事項再填寫本頁) -5- 566038 A7 B7 五、發明説明(3) 受到所放出之不必要電磁場之干擾時,該其他電路受到其 影響而引起雜音障礙及振盪等。例如’影像系統處理電路 及聲音系統處理電路受到放出之高頻成分之不必要雜波時 ,會使電視畫面之畫質劣化,或使再生聲音之音質劣化。 因此,處理高頻信號之調諧器部之半導體晶片,及其他影 像系統處理電路及聲音系統處理電路等安裝在同一主機板 時,必需要使成爲雜波或雜音原因之電磁場不干擾影像系 統處理電路及聲音系統處理電路等的考量。其中之一種方 法爲,使用具有導電性材料,在影像系統處理電路及聲音 系統處理電路等之周圍作成壁等來屏蔽該等電路使其不受 電磁干擾的方法。 然而,該電磁的屏蔽係通常用金屬製之盒體覆蓋對象 電路之外周爲之。因此,難以在同一主機板上高密度地安 裝調諧器部之半導體晶片及其周邊電路等,在圖裝置之小 型化及薄型化上有問題。 又按,在同一主機板上,除了安裝處理高頻信號之調諧 器部之半導體晶片以外,還要安裝影像系統處理電路及聲 音系統處理電路時,由於各電路在主機板上之配置上的關 係,調諧器部會受到影像系統處理電路及聲音系統處理電 路等,或布線上之影響而使高頻特性劣化的情形。該時也 同樣地成爲使電視畫面之畫質劣化,或使再生聲意之音質 劣化之原因。 本發明係爲解決該等問題所成,其目的在於儘量縮小構 成電視機等之電子機器所需要之電路規模,以便能實行電 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) ---------裝-- (請先閱讀背面之注意事項再填寫本頁) -口 -線 經濟部智慧財產局員工消費合作社印製 -6 - 566038 A7 B7 五、發明説明(4) 子機器之進一步小型化及薄型化者。 又按,本發明之目的,在於能夠抑制因將電子機器之 複數個機能電路部安裝在同一基板上時所發生之畫質或音 質之劣化者。 〔發明之揭示〕 本發明之信號處理裝置係屬於爲處理無線通訊所接收 到之信號用之複數個電路安裝在同一印刷電路基板上之形 態之信號處理裝置,具備有: 將接收之高頻信號輸入上述印刷電路基板內之連接器 對從上述連接器所輸入之高頻信號實行預定之處理之 結果,輸出對應於所希望接收頻率之中頻信號之調諧器部 對從上述調諧器部所輸出之中頻信號實行預定之處理 用之信號處理部; 將上述連接器,上述調諧器部及上述信號處理部安裝 在上述同一個印刷電路基板上,把上述調諧器部配置在上 述連接器之附近者。 本發明之其他樣態中,將上述信號處理部,以上述調 諧器部夾在中間之狀態而配置在上述連接器之相反之一方 者。 本發明之其他樣態中,上述信號處理部係包含實行有 關影像之預定之處理而生成影像信號之電路者。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁) 訂 線 經濟部智慧財產局員工消費合作社印製 566038 A7 B7 五、發明説明(5) 或者,上述信號處理部係包含實行有關聲音之預定之 處理而生成聲音信號之電路者。 或者,上述信號處理部係包含實行有關影像之預定之 處理而生成影像信號之電路,以及包含實行有關聲音之預 定之處理而生成聲音信號之電路者。 本發明之其他樣態中,以上述無線通訊所接收之高頻 信號係電視播放信號者。 又按,本發明之電子機器係將所接收之高頻信號輸入 上述印刷電路基板內之連接器,對從上述連接器所輸入之 高頻信號實行預定之處理之結果,輸出對應於所希望接收 頻率之中頻信號之調諧器部,對從上述調諧器部所輸出之 中頻信號實行預定之處理用之信號處理部安裝於同一個印 刷電路基板上,將上述連接器固定在筐體之預定位置而將 上述印刷電路基板安裝在上述筐體者。 本發明之其他樣態中,將上述調諧器部配置在上述連 接器之附近者。 本發明係用上述技術手段所成的關係,調諧器部之外 ,信號處理部也在同一個半導體基板上集體化,再者,該 半導體基板爲與連接器一體化之結果,能夠更縮小構成電 視機等之電子機器所需要之電路規模。又按,根據本發明 ,可以減少從連接器所輸入之高頻信號所放出之不必要電 磁場干擾調諧器部以外之,處理中頻信號之電路,能夠抑 制受到電磁場之影響而引起雜音障礙及引起振盪等之缺點 。於是,不必在影像系統處理電路及聲音系統處理電路之 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁) 、言 Γ 經濟部智慧財產局員工消費合作社印製 -8- 經濟部智慧財產局員工消費合作社印製 566038 A7 B7_ 五、發明説明(6) 周圍,或在調諧器部之周圍等設置電磁的屏蔽。 於是,在同一個印刷電路基板上可以高密度地安裝處 理高頻信號及中頻信號等之各種電路,可實現電視機等電 子機器之進一步小型化及薄型化。又按,可減少不必要的 電磁波之影響及高頻特性之劣化,以抑制畫面及音質之劣 化者。 又按,將處理從連接器所輸入之高頻信號之調諧器部 配置在該連接器等之附近之結果,連接器等與調諧器部之 間不會配置影像系統處理電路及聲音系統處理電路等,同 時,可縮短連接器等與調諧器部之間之配線。於是,可以 抑制因受到影像系統處理電路及聲音系統處理電路或配線 上之影響而使高頻特性劣化之缺點。 又按,根據本發明之電子機器,可在同一個印刷電路 基板上,高密度地安裝連接器,調諧器部及信號處理部, 而且,該印刷電路基板本身係將連接器固定在筐體之預定 位置之結果,安裝在該筐體而使用的關係,不需要將調諧 器部及信號處理部配置在附有連接器之主機板之後把該主 機板安裝在筐體,因而不需要使用大型的主機板。 〔圖式之簡單說明〕 第1圖係顯示以往之電視機之一般構成例之圖。 第2圖係顯示調諧器之構成例之圖。 第3圖係顯示本實施形態之電視器之信號處理裝置之 構成例之圖。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閲讀背面之注意事項再填寫本頁)The PLL circuit is integrated into an LSI on a semiconductor substrate (wafer). However, as described above, although the regulators have been collected to a certain extent, other functional components required to form a television are integrated.尙 is insufficient. Therefore, it is now necessary to integrate the chip of the tuner section integrated on a semiconductor substrate as described above, the video system processing circuit that performs the video system processing on its output, and the audio system processing circuit that performs the audio system processing. Modularization is used on the motherboard. Also, in a television, the relationship between processing a high-frequency signal in a tuner may cause an unnecessary electromagnetic field to be emitted. At this time, the other paper size of the circuit is applicable to the Chinese National Standard (CNS) A4 specification (210 × 297 mm) 11111 11 n Order II (Please read the precautions on the back before filling this page) -5- 566038 A7 B7 V. Description of the invention (3) When receiving unnecessary electromagnetic field interference, the other circuits are affected by it to cause noise disturbance and oscillation. For example, when the 'video system processing circuit and sound system processing circuit are subjected to unnecessary clutter from the emitted high-frequency components, the picture quality of the television picture is deteriorated, or the sound quality of the reproduced sound is deteriorated. Therefore, when the semiconductor chip of the tuner section that processes high-frequency signals, and other image system processing circuits and sound system processing circuits are installed on the same motherboard, it is necessary to prevent the electromagnetic field that causes noise or noise from interfering with the image system processing circuit. And sound system processing circuits. One method is to use conductive materials to shield these circuits from electromagnetic interference by forming walls around the video system processing circuits and sound system processing circuits. However, this electromagnetic shielding system usually covers the outer periphery of the target circuit with a metal case. Therefore, it is difficult to mount the semiconductor chip of the tuner section and its peripheral circuits at high density on the same motherboard, and there is a problem in reducing the size and thickness of the device. Pressing again, in addition to the semiconductor chip of the tuner section that processes high-frequency signals, the image system processing circuit and sound system processing circuit are also installed on the same motherboard because of the relationship between the circuits on the motherboard. The tuner section may be affected by the video system processing circuit, the sound system processing circuit, or the wiring, and the high-frequency characteristics may be deteriorated. At this time, the same causes the deterioration of the picture quality of the television screen or the deterioration of the sound quality of the reproduced sound. The present invention is made to solve these problems, and its purpose is to minimize the circuit scale required for the electronic equipment constituting a television set, etc., so that the paper size of the electric paper can be applied to the Chinese National Standard (CNS) A4 specification (210X297 mm) --------- Equipment-(Please read the precautions on the back before filling this page) -Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs-6-566038 A7 B7 V. Description of the invention ( 4) Further miniaturization and thinning of sub-machines. According to another aspect, an object of the present invention is to suppress deterioration of image quality or sound quality caused when a plurality of functional circuit portions of an electronic device are mounted on the same substrate. [Disclosure of the invention] The signal processing device of the present invention is a signal processing device in the form of a plurality of circuits mounted on the same printed circuit board for processing signals received by wireless communication. The signal processing device is provided with: The connector input into the printed circuit board performs a predetermined process on the high-frequency signal input from the connector, and outputs a tuner section corresponding to an intermediate frequency signal of a desired reception frequency to the tuner section output from the tuner section. A signal processing unit for performing predetermined processing of the intermediate frequency signal; the connector, the tuner unit, and the signal processing unit are mounted on the same printed circuit board, and the tuner unit is arranged near the connector By. In another aspect of the present invention, the signal processing unit is disposed on the opposite side of the connector with the tuner unit sandwiched therebetween. In another aspect of the present invention, the signal processing unit includes a circuit that generates a video signal by performing predetermined processing on the video. This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling out this page) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and printed by the Consumers' Cooperatives 566038 A7 B7 5. Description of the invention ( 5) Alternatively, the above-mentioned signal processing unit includes a circuit that generates a sound signal by performing predetermined processing on the sound. Alternatively, the above-mentioned signal processing unit includes a circuit that generates a video signal by performing predetermined processing on the image, and a circuit that generates a sound signal by performing predetermined processing on the sound. In another aspect of the present invention, the high-frequency signal received by the wireless communication is a television broadcast signal. According to another aspect, the electronic device of the present invention inputs the received high-frequency signal to a connector in the printed circuit board, performs a predetermined processing result on the high-frequency signal input from the connector, and outputs the output corresponding to the desired reception. The tuner section of the frequency intermediate frequency signal, the signal processing section for performing predetermined processing on the intermediate frequency signal output from the tuner section is mounted on the same printed circuit board, and the connector is fixed to the predetermined housing. Position to mount the printed circuit board in the housing. In another aspect of the present invention, the tuner unit is disposed near the connector. The present invention is a relationship formed by the above-mentioned technical means. In addition to the tuner unit, the signal processing unit is collectively formed on the same semiconductor substrate. Furthermore, the semiconductor substrate is integrated with the connector and can be further reduced in size. Circuit scale required for electronic devices such as televisions. According to the present invention, according to the present invention, unnecessary electromagnetic fields emitted from the high-frequency signals input by the connector can be reduced to interfere with the circuits other than the tuner, and the circuits for processing the intermediate-frequency signals can suppress the noise disturbance caused by the influence of the electromagnetic field. Disadvantages such as oscillation. Therefore, it is not necessary to apply the Chinese National Standard (CNS) A4 specification (210X297 mm) to the paper size of the image processing circuit and sound system processing circuit (please read the precautions on the back before filling this page), and the wisdom of the Ministry of Economic Affairs Printed by the Consumer Cooperative of the Property Bureau -8- Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 566038 A7 B7_ V. Description of the invention (6) Set electromagnetic shields around the tuner department. Therefore, various circuits for processing high-frequency signals and intermediate-frequency signals can be mounted on the same printed circuit board at high density, and further miniaturization and thinning of electronic devices such as televisions can be achieved. Press again to reduce the influence of unnecessary electromagnetic waves and the degradation of high-frequency characteristics to suppress the deterioration of the picture and sound quality. Pressing again, as a result of arranging the tuner section that processes high-frequency signals input from the connector near the connector, the image system processing circuit and sound system processing circuit are not arranged between the connector and the tuner section. At the same time, the wiring between the connector and the tuner section can be shortened. Therefore, it is possible to suppress the disadvantage that the high-frequency characteristics are deteriorated due to the influence of the video system processing circuit and the audio system processing circuit or wiring. According to the electronic device of the present invention, the connector, the tuner section, and the signal processing section can be mounted on the same printed circuit board at a high density, and the printed circuit board itself fixes the connector to the housing. As a result of the predetermined position, it is not necessary to install the tuner section and the signal processing section on the main board with the connector and install the main board in the case of using the main board. motherboard. [Brief Description of the Drawings] FIG. 1 is a diagram showing a general configuration example of a conventional television. Fig. 2 is a diagram showing a configuration example of a tuner. Fig. 3 is a diagram showing a configuration example of a signal processing device of a television set according to this embodiment. This paper size applies to China National Standard (CNS) A4 (210X297 mm) (Please read the precautions on the back before filling this page)

-9- 566038 A7 B7 五、發明説明(7) 第4圖係顯示構成爲如第3圖之信號處理裝置(印刷 電路基板)安裝在電視機之筐體之狀態之圖。 經濟部智慧財產局員工消費合作社印製 元 件對照表 4 1 天 線 4 2 調 三匕 3曰 器 4 3 中 頻 放 大 器 4 4 影 像 檢 波 電 路 4 5 聲 檢 波 電 路 4 6 影 像 系 統 處 理 電 路 4 7 聲 :gl 系 統 處 理 電 路 5 1 jfcs 頻 帶 通 過 濾 波 器 5 2 高 頻 放 大 器 5 3 頻 帶 通 過 濾 波 器 5 4 混 頻 器 5 5 頻 率 變 換 用 振 湯 器 5 6 鎖 相 電 路 1 印 刷 電 路 基 板 2 連 接 器 3 調 諧 器 部 4 影 像 系 統 處 理 電 路 5 聲 系 統 處 理 電 路 6 影 像 輸 出 端 子 7 聲 音 輸 出 端 子 (請先閲讀背面之注意事項再填寫本頁) -裝_ 、訂 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -10- 566038 A7 B7 五、發明説明(8) 1 1 固定用構件 10 筐體 〔實施發明之最佳形態〕 茲根據圖式,將本發明之一實施形態說明如下。 第3圖係顯示本實施形態之電視器之信號處理裝置之 一構成例之圖。如第3圖所示,本實施形態之電視器之信 號處理裝置係接收電視播送而處理所需要之複數個機能電 路安裝在同一個印刷電路基板(以下簡稱爲P C B ) 1有 安裝連接器2,調詣器部3,影像系統處理電路4及聲音 系統處理電路5。連接器2係用以輸入以未圖示之接收用 天線所接收之電視播送用之電波(高頻電視信號)者,係 固定在該電視機之筐體作爲電視機之外部端子。 調諧器部3係具有與在第1圖所示之調諧器4 2及 I F放大器4 3同樣的機能者。換言之,將經未圖示之接 收用天線所接收而藉由連接器2而輸入之高頻電視信號, 及相應所設定之希望接收頻率而控制之局部振盪頻率之信 號予以混合之結果,取出中頻(I F )信號。然後,放大 該所取出之I F信號。 影像系統處理電路4係對上述調諧器部3所輸出之 I F信號實行有關影像之預定處理,以生成未圖示之 C R T及L C D等之顯示裝置可以顯示之影像信號者。例 如,對從調諧器部3所輸出之I F信號實行解調處理之後 分離成亮度信號及顏色信號而實行預定之影像信號處理之 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁) 、1' 經濟部智慧財產局員工消費合作社印製 -11 - 經濟部智慧財產局員工消費合作社印製 566038 A7 B7 五、發明説明(9) 結果,生成上述影像信號。生成之影像信號爲從影像輸出 端子6向未圖示之C RT及L C D等之顯示裝置輸出之。 聲音系統處理電路5係係對上述調諧器部3所輸出之I F 信號實行有關聲音之預定處理,以生成未圖示之揚聲器等 可以輸出之聲音信號者。例如,對從調諧器部3所輸出之 I F信號實行解調處理之後,實行音量調整及放大等預定 之聲音信號處理之結果,生成上述聲音信號。生成之聲音 ί目號爲從聲首輸出端子7向未圖不之揚腎器輸出之。 在具有如第3圖所示構成之電視機之信號處理裝置中 ,至少調詣器部3係將頻帶通過濾波器,高頻(R F )放 大器,混頻器電路等之無源元件與P L L電路一起匯集在 一個半導體基板上之半導體晶片之構成。又按,關於影像 系統處理電路4及聲音系統處理電路5也是可以構成爲分 別匯集在一個半導體基板上之半導體晶片。 在本實施形態中,關於將上述調詣器部3,影像系統 處理電路4及聲音系統處理電路5配置在印刷電路基板1 上之方法,把處理從連接器2所輸入之高頻信號之調詣器 部3配置在該連接器2之附近,把處理調詣器部3以外之 中頻信號之電路配置在調詣器部3之後段以離開連接器2 。換言之,以自連接器2,接著調諧器部3,及其他電路 之順序配置在印刷電路基板1上。 以上述方法配置之結果,可以減少根據從連接器2所 輸入之高頻信號所放出之不必要的電磁場影響到調詣器部 3以外之處理中頻信號之電路的情形,可以抑制受到電磁 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ297公釐1 ~ -12- 裝 訂 線 (請先閲讀背面之注意事項再填寫本頁) 566038 A7 B7 五、發明説明(10) 場之影響而引起雜波障礙及振盪的缺點。因此,不必在影 像系統處理電路4及聲音系統處理電路5之周圍,或在調 詣器部3之周圍設置電磁的屏蔽,可將處理高頻信號及中 頻信號等之各種機能電路,以高密度地安裝在印刷電路基 板1上。 又按,把處理從連接器2所輸入之高頻信號之調詣器 部3配置在該連接器2之附近之結果,可避免把影像系統 處理電路4及聲音系統處理電路5等配置在連接器2與調 詣器部3之間,同時可縮短連接器2與調詣器部3間之配 線。於是,可以抑制高頻特性因受到影像系統處理電路4 及聲音系統處理電路5或配線上之影響而劣化的缺點。 第4圖係顯示構成爲如第3圖之信號處理裝置(印刷 電路基板)安裝在電視機之筐體之狀態之圖。如第4圖所 示,本實施形態之印刷電路基板1係例如使用螺栓及螺帽 等之固定構件11把連接器2固定在筐體10之預定位置 。該時,至少使連接器2之一部分突出於筐體1 0之外部 的狀態固定來安裝印刷電路基板1安裝在筐體1 0者。 如上述,在本實施形態中,將調詣器部3,影像系統 處理電路4及聲音系統處理電路5連同連接器2安裝在同 一個印刷電路基板1上以便將各電路與連接器2 —體化, 例如,將印刷電路基板1掛在隹體中之狀能使用之。如此 構成,則不必將調詣器部3,影像系統處理電路4及聲音 系統處理電路5等配置在附有連接器之主機板之後,把該 主機板安裝在筐體,不需要大型的主機板。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁) 、言 經濟部智慧財產局員工消費合作社印製 -13- 566038 Α7 Β7 五、發明説明(11) 如上述,根據本實施形態,可在同一個印刷電路基板 1上以高密度安裝複數個機能電路而可實現電視機之進一 步小型化及薄型化之同時,減少不必要電磁波之影響及高 頻特性之劣化而可抑制畫質及音質之劣化者。 在上述實施形態中,說明將調詣器部3,影像系統處 理電路4及聲音系統處理電路5安裝在同一個印刷電路基 板1上之情形,然而本發明並非限定於此。例如,當把調 詣器部3及影像系統處理電路4安裝在同一個印刷電路基 板1上時,或把調詣器部3及聲音系統處理電路5安裝在 同一個印刷電路基板1時也同樣地可以適用之。 又按,欲把影像系統處理電路4及聲音系統處理電路 5以外之電路與調詣器部3 —起安裝在同一個印刷電路基 板1上時也可以同樣地適用之。例如,控制上述調詣器部 3,影像系統處理電路4及聲音系統處理電路5之動作用 之微電腦,再者,接收數位播放電波而處理時所使用之快 閃記憶體及R A Μ等安裝在同一個印刷電路基板1上也可 以。該時也同樣地,將調詣器部3配置在連接器2之附近 ,把其他之電路離連接器2而配置則可得到如同上述之效 果。 又按,在上述實施形態中,對印刷電路基板1安裝連 接器2,將用未圖示之天線接收之高頻信號藉由連接器2 而輸入印刷電路基板1內之構成,然而,將天線本身安裝 在印刷電路基板1上以取代連接器2也可以。該時,將調 詣器部3配置在天線之附近,其他之影像系統處理電路4 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ297公釐) (請先閱讀背面之注意事項再填寫本頁) 、言 經濟部智慧財產局員工消費合作社印製 -14 566038 經濟部智慧財產局員工消費合作社印製 Α7 Β7 五、發明説明(1勿 及聲音系統處理電路5,以調詣器部3夾在中間之狀態配 置在相反於天線之一方。 又按,在上述實施形態中,將本發明之信號處理裝置 適用於電視機之情形來說明,然而本發明並非限定於此, 可以同樣地適用於,藉由無線通信而接收影像信號或聲音 信號中之至少一方,實行預定之處理之後輸出之裝置者。 例如,可以適用於具備有R F濾波器之攜帶型電話(行動 電話),P H S等之無線通信末端,A Μ廣播,F Μ廣播 ,短波廣播等之收音機等。 其他,上述說明之實施形態係只不過是顯示實施本發 明時之具體化一例而己;不可用以限定地解釋本發明之技 術的範圍。換言之,本發明可在不離開本發明之精神,或 其主要特徵下,可以各種各樣的形式實施之。 〔產業上之利用可能性〕 本發明係將構成電視機等之電子機器所需要之電路規 模予以縮小,有用於實現電子機器之進一步小型化及薄型 化。 又按,本發明係對抑制把電子機器之複數個機能電路 部安裝在同一個基板上時所發生之畫質及音質之劣化極爲 有用者。 本紙張尺度適用中國國家標準(CNS ) Α4規格(210X297公釐) 裝 訂 線 (請先閱讀背面之注意事項再填寫本頁) -15--9- 566038 A7 B7 V. Description of the Invention (7) Figure 4 is a diagram showing a state where the signal processing device (printed circuit board) structured as shown in Figure 3 is mounted on the casing of the television. Comparison Table of Printed Components for Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 1 Antenna 4 2 Tuner 3 4 IF Amplifier 4 4 Image Detector Circuit 4 5 Acoustic Detector Circuit 4 6 Imaging System Processing Circuit 4 7 Acoustic: gl System processing circuit 5 1 jfcs band pass filter 5 2 high-frequency amplifier 5 3 band pass filter 5 4 mixer 5 5 oscillator for frequency conversion 5 6 phase-locked circuit 1 printed circuit board 2 connector 3 tuner section 4 Image system processing circuit 5 Sound system processing circuit 6 Video output terminal 7 Sound output terminal (please read the precautions on the back before filling this page)-Installation _, the paper size is applicable to China National Standard (CNS) A4 specification (210X297 -10- 566038 A7 B7 V. Description of the invention (8) 1 1 Fixing member 10 Case [best form for implementing the invention] An embodiment of the present invention will be described below with reference to the drawings. Fig. 3 is a diagram showing a configuration example of a signal processing device of a television set according to this embodiment. As shown in FIG. 3, the signal processing device of the television set of this embodiment is a system in which a plurality of functional circuits required for receiving television broadcasts and processing are mounted on the same printed circuit board (hereinafter referred to as PCB). 1 has a mounting connector 2, The tuner unit 3, the video system processing circuit 4, and the audio system processing circuit 5. The connector 2 is used to input radio waves (high-frequency television signals) for television broadcasting received by a receiving antenna (not shown), and is fixed to the housing of the television as an external terminal of the television. The tuner section 3 has a function similar to that of the tuner 42 and the IF amplifier 43 shown in FIG. In other words, the result of mixing the high-frequency television signal received through the receiving antenna (not shown) and input through the connector 2 and the signal of the local oscillation frequency controlled by the desired desired reception frequency is mixed and taken out. Frequency (IF) signal. Then, the extracted I F signal is amplified. The image system processing circuit 4 performs predetermined processing on the image with respect to the IF signal output from the tuner section 3 to generate an image signal that can be displayed by a display device such as C R T and L C D (not shown). For example, if the IF signal output from the tuner section 3 is demodulated and separated into a luminance signal and a color signal, and the predetermined image signal processing is performed, the Chinese paper standard (CNS) A4 specification (210X297 mm) is applied. (Please read the notes on the back before filling out this page), 1 'Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -11-Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 566038 A7 B7 V. Explanation of the Invention (9) Results To generate the image signal. The generated image signal is output from the image output terminal 6 to a display device such as C RT and L C D (not shown). The sound system processing circuit 5 performs predetermined sound processing on the I F signal output from the tuner unit 3 described above to generate a sound signal that can be output, such as a speaker (not shown). For example, after the demodulation processing is performed on the IF signal output from the tuner section 3, a predetermined sound signal processing such as volume adjustment and amplification is performed, and the above-mentioned sound signal is generated. The generated sound number is output from the sound output terminal 7 to a kidney device not shown. In a signal processing device having a television set configured as shown in FIG. 3, at least the tuner section 3 passes a frequency band through a passive element such as a filter, a high-frequency (RF) amplifier, a mixer circuit, and a PLL circuit. The structure of semiconductor wafers gathered together on a semiconductor substrate. Furthermore, the video system processing circuit 4 and the audio system processing circuit 5 can also be configured as semiconductor wafers that are collected on a single semiconductor substrate. In this embodiment, regarding the method of disposing the tuner section 3, the video system processing circuit 4, and the sound system processing circuit 5 on the printed circuit board 1, the processing of the high-frequency signal input from the connector 2 is processed. The adapter section 3 is arranged near the connector 2, and a circuit for processing an intermediate frequency signal other than the modulator section 3 is arranged behind the modulator section 3 to leave the connector 2. In other words, it is arranged on the printed circuit board 1 in this order from the connector 2 to the tuner section 3 and other circuits. As a result of the configuration by the above method, it is possible to reduce the situation that unnecessary electromagnetic fields emitted from the high-frequency signal input from the connector 2 affect the circuits processing the intermediate frequency signals other than the tuner section 3, and it is possible to suppress the electromagnetic wave. Paper size applies Chinese National Standard (CNS) A4 specification (210 × 297 mm 1 ~ -12- gutter (please read the precautions on the back before filling this page) 566038 A7 B7 V. Description of the invention (10) caused by the influence of the field Clutter obstacles and shortcomings of oscillation. Therefore, it is not necessary to set electromagnetic shielding around the video system processing circuit 4 and sound system processing circuit 5 or around the tuner section 3, and it can process high frequency signals and intermediate frequency signals. Various functional circuits such as these are mounted on the printed circuit board 1 at a high density. When the regulator unit 3 that processes the high-frequency signal input from the connector 2 is arranged near the connector 2, It is possible to avoid disposing the image processing circuit 4 and the sound system processing circuit 5 between the connector 2 and the tuner section 3, and shorten the wiring between the connector 2 and the tuner section 3. Yes, it is possible to suppress the disadvantage that the high-frequency characteristics are deteriorated by the influence of the video system processing circuit 4 and the sound system processing circuit 5 or wiring. Fig. 4 shows a signal processing device (printed circuit board) configured as shown in Fig. 3 A diagram of a state of being mounted on a housing of a television. As shown in FIG. 4, the printed circuit board 1 of this embodiment is intended to fix the connector 2 to the housing 10 using, for example, fixing members 11 such as bolts and nuts. At this time, at least a part of the connector 2 is protruded from the outside of the casing 10, and the printed circuit board 1 is mounted on the casing 10. As described above, in this embodiment, the regulator The unit 3, the video system processing circuit 4 and the sound system processing circuit 5 are mounted on the same printed circuit board 1 together with the connector 2 so as to integrate each circuit with the connector 2. For example, the printed circuit board 1 is hung on the body This configuration can be used. With this configuration, it is not necessary to arrange the tuner section 3, the video system processing circuit 4 and the sound system processing circuit 5 on the motherboard with the connector, and then install the motherboard. In the case, there is no need for a large motherboard. This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) (please read the precautions on the back before filling this page), and the staff of the Intellectual Property Bureau of the Ministry of Economy Printed by a cooperative -13- 566038 Α7 B7 V. Description of the invention (11) As described above, according to this embodiment, a plurality of functional circuits can be mounted on the same printed circuit board 1 at a high density, and the TV can be further miniaturized. At the same time as reducing thickness, reducing the influence of unnecessary electromagnetic waves and degradation of high-frequency characteristics and suppressing deterioration of image quality and sound quality. In the above embodiment, the tuner section 3, the video system processing circuit 4 and the sound will be described. Although the system processing circuit 5 is mounted on the same printed circuit board 1, the present invention is not limited to this. For example, the same applies when the tuner section 3 and the video system processing circuit 4 are mounted on the same printed circuit board 1, or when the tuner section 3 and the audio system processing circuit 5 are mounted on the same printed circuit board 1. Land can be applied to it. Also, if the circuit unit other than the video system processing circuit 4 and the audio system processing circuit 5 is mounted on the same printed circuit board 1 as the tuner section 3, the same applies. For example, a microcomputer that controls the operations of the tuner unit 3, the video system processing circuit 4, and the sound system processing circuit 5, and furthermore, a flash memory and a RAM used when receiving digital broadcast radio waves for processing are installed in It may be on the same printed circuit board 1. Also in this case, if the tuner section 3 is arranged near the connector 2 and other circuits are arranged away from the connector 2, the same effect as described above can be obtained. According to the above embodiment, the connector 2 is mounted on the printed circuit board 1 and a high-frequency signal received by an antenna (not shown) is input to the printed circuit board 1 through the connector 2. However, the antenna Instead of the connector 2, the printed circuit board 1 itself may be mounted. At this time, the tuner unit 3 is arranged near the antenna, and the other imaging system processing circuits 4 The paper size applies the Chinese National Standard (CNS) Α4 specification (210 × 297 mm) (Please read the precautions on the back before filling in this Page), printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -14 566038 printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 Β7 V. Description of the invention The state in the middle is arranged on the opposite side to the antenna. According to the above embodiment, the case where the signal processing device of the present invention is applied to a television is described, but the present invention is not limited to this, and can be equally applied to A device that receives at least one of an image signal or an audio signal through wireless communication and outputs it after performing a predetermined process. For example, it can be applied to a wireless phone (mobile phone) equipped with an RF filter, a PHS, and the like Communication terminal, radio such as AM broadcast, FMB broadcast, shortwave broadcast, etc. In addition, the above-mentioned embodiment is only This is an example of the embodiment of the present invention; it cannot be used to limit the scope of the technology of the present invention. In other words, the present invention can be variously modified without departing from the spirit of the invention or its main features. [Industrial Applicability] The present invention is to reduce the circuit scale required for an electronic device such as a television, and is useful for further miniaturization and thinness of the electronic device. According to the present invention, It is very useful for suppressing the deterioration of the picture quality and sound quality that occurs when multiple functional circuit parts of electronic equipment are mounted on the same substrate. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) binding (Please read the precautions on the back before filling this page) -15-

Claims (1)

566038 A8 B8 C8 D8 六、申請專利範圍 1 . 一種信號處理裝置,係屬於爲處理無線通訊所接 收到之信號用之複數個電路安裝在同一個印刷電路基板上 之形態之信號處理裝置,其特徵爲,具備有: 將接收之高頻信號輸入上述印刷電路基板內之連接器 對從上述連接器所輸入之高頻信號實行預定之處理之 結果,輸出對應於所希望接收頻率之中頻信號之調諧器部 5 對從上述調諧器部所輸出之中頻信號實行預定之處理 用之信號處理部; 將上述連接器,上述調諧器部及上述信號處理部安裝 在上述同一個印刷電路基板上,把上述調諧器部配置在上 述連接器之附近者。 2 .如申請專利範圍第1項之信號處理裝置,其中將 上述之信號處理部,以上述調諧器部夾在中間之狀態而配 置在上述連接器之相反之一方者。 3 ·如申請專利範圍第1項之信號處理裝置,其中上 述信號處理部係包含實行有關影像之預定之處理而生成影 像信號之電路者。 4 ·如申請專利範圍第1項之信號處理裝置,其中上 述信號處理部係包含實行有關聲音之預定之處理而生成聲 音信號之電路者。 5 ·如申請專利範圍第1項之信號處理裝置,其中上 述信號處理部係包含實行有關影像之預定之處理而生成影 本紙張尺度適用中國國家標準(CNS ) Α4規格(210X297公釐) _ 16 - (請先閱讀背面之注意事項再填寫本頁) 裝· 、1T 經濟部智慧財產局員工消費合作社印製 566038 A8 B8 C8 D8 夂、申請專利範圍 像信號之電路,以及包含實行有關聲音之預定之處理而生 成聲音信號之電路者。 6 ·如申請專利範圍第1項之信號處理裝置,其中, 以上述無線通訊所接收之高頻信號係電視播放信號者。 7 · —種電子機器,其特徵爲,將所接收之高頻信號 輸入上述印刷電路基板內之連接器,對從上述連接器所輸 入之高頻信號實行預定之處理之結果,輸出對應於所希望 接收頻率之中頻信號之調諧器部,對從上述調諧器部所輸 出之中頻信號實行預定之處理用之信號處理部安裝於同一 個印刷電路基板上,將上述連接器固定在筐體之預定位置 而將上述印刷電路基板安裝在上述筐體者。 8 ·如申請專利範圍第7項之電子機器,其中,將上 述調諧器部配置在上述連接器之附近者。 ^-- (請先閲讀背面之注意事項再填寫本頁) 訂 線 經濟部智慧財產局員工消費合作社印製 17- 本紙張尺度適用中國國家標準(CNS ) A4規格(210 X 297公釐)566038 A8 B8 C8 D8 VI. Patent application scope 1. A signal processing device belongs to a signal processing device in the form of a plurality of circuits mounted on the same printed circuit board for processing signals received by wireless communication. Its characteristics The method includes the following steps: inputting the received high-frequency signal to a connector in the printed circuit board, and performing a predetermined processing on the high-frequency signal input from the connector, and outputting an intermediate-frequency signal corresponding to a desired receiving frequency; The tuner section 5 is a signal processing section for performing predetermined processing on the intermediate frequency signal output from the tuner section; mounting the connector, the tuner section, and the signal processing section on the same printed circuit board, The tuner unit is arranged near the connector. 2. The signal processing device according to item 1 of the scope of patent application, wherein the above-mentioned signal processing section is arranged on the opposite side of the connector with the tuner section sandwiched therebetween. 3. The signal processing device according to item 1 of the scope of patent application, wherein the above-mentioned signal processing unit includes a circuit that performs predetermined processing on the image to generate an image signal. 4. The signal processing device according to item 1 of the scope of patent application, wherein the above-mentioned signal processing section includes a circuit that performs predetermined processing on sound to generate a sound signal. 5 · If the signal processing device of the scope of patent application item 1, wherein the above-mentioned signal processing unit contains a predetermined processing of the relevant image to generate a copy of the paper size applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) _ 16- (Please read the precautions on the back before filling out this page.) Installation, printed by 1T Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives 566038 A8 B8 C8 D8 夂, patent application circuit like signal, and a plan containing sound implementation A circuit that processes and generates sound signals. 6. The signal processing device according to item 1 of the scope of patent application, wherein the high-frequency signal received by the above wireless communication is a television broadcast signal. 7 · An electronic device characterized in that the received high-frequency signal is input to a connector in the printed circuit board, a result of a predetermined process is performed on the high-frequency signal input from the connector, and an output corresponding to the The tuner section desiring to receive the intermediate frequency signal of the frequency, the signal processing section for performing predetermined processing on the intermediate frequency signal output from the tuner section is mounted on the same printed circuit board, and the connector is fixed to the casing The printed circuit board is mounted on the housing at a predetermined position. 8. The electronic device according to item 7 of the patent application scope, wherein the tuner section is arranged near the connector. ^-(Please read the precautions on the back before filling out this page) Ordering line Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 17- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)
TW90119915A 2000-08-14 2001-08-14 Signal processing unit and electronic apparatus using the same TW566038B (en)

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JPH05136655A (en) * 1991-11-11 1993-06-01 Murata Mfg Co Ltd Card type electronic tuner
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