JP2751455B2 - Receive electric field strength judgment method - Google Patents
Receive electric field strength judgment methodInfo
- Publication number
- JP2751455B2 JP2751455B2 JP23081589A JP23081589A JP2751455B2 JP 2751455 B2 JP2751455 B2 JP 2751455B2 JP 23081589 A JP23081589 A JP 23081589A JP 23081589 A JP23081589 A JP 23081589A JP 2751455 B2 JP2751455 B2 JP 2751455B2
- Authority
- JP
- Japan
- Prior art keywords
- reception
- mode
- field strength
- determination
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Circuits Of Receivers In General (AREA)
- Mobile Radio Communication Systems (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は移動通信端末装置の受信電界強度判定方式に
関し、特にその受信電界強度判定基準を切換えることが
できる受信電界強度判定方式に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiving electric field strength judging method for a mobile communication terminal, and more particularly to a receiving electric field strength judging method capable of switching a receiving electric field strength judging standard.
通常、移動通信端末装置の無線通信装置、特に受信装
置は使用目的により車載用モードと携帯用モードに分け
られるのが通例である。この二つのモードは受信電界の
相違によって受信装置の利得を若干変えるのが一般的で
ある。しかし、従来の受信装置の受信電界強度を判定す
る基準値は特に二つのモードで分けることなく、一つの
固定した受信電界強度判定基準を使用していた。Usually, a wireless communication device of a mobile communication terminal device, particularly a receiving device, is generally divided into an in-vehicle mode and a portable mode depending on the purpose of use. Generally, in these two modes, the gain of the receiving apparatus is slightly changed depending on the difference in the receiving electric field. However, the reference value for judging the reception electric field strength of the conventional receiving apparatus uses one fixed reception electric field strength judgment standard without dividing the reference value into two modes.
〔発明が解決しようとする課題〕 上述した従来の移動通信端末装置の受信装置では、受
信電界強度判定基準が一つに固定しているので、車載モ
ードと携帯モードとで高周波部利得に差異がある場合
に、同じ受信電界強度であるにもかかわらず、その判定
結果がモードによって異なる欠点があった。[Problems to be Solved by the Invention] In the above-mentioned receiving device of the conventional mobile communication terminal device, since the received electric field strength determination criterion is fixed to one, there is a difference in the high-frequency part gain between the in-vehicle mode and the portable mode. In one case, there is a drawback that the determination result differs depending on the mode even though the reception electric field strength is the same.
本発明の受信電界強度判定方式は移動通信端末装置の
受信装置における受信中間周波信号の強度に応じた信号
を出力する受信電界強度検出部と、この受信電界強度検
出部から出力される値をあらかじめ設定された基準値と
比較することにより受信電界強度を判定する受信電界強
度判定方式において、使用される受信モードが車載モー
ドであるか携帯モードであるかを検出する受信モード検
出部と、車載モードの判定基準値を設定した車載モード
判定信号発生部と、携帯モードの判定基準値を設定した
携帯モード判定信号発生部と、前記車載モード判定信号
発生部または前記携帯モード判定信号発生部のいずれか
の信号を前記受信モード検出部の制御信号により選択出
力する切替器と、この切替切の出力信号と前記受信電界
強度検出部の検出信号とを比較判定する比較判定部とを
有する。A receiving field strength determination method according to the present invention includes a receiving field strength detecting unit that outputs a signal corresponding to the strength of a received intermediate frequency signal in a receiving device of a mobile communication terminal device, and a value output from the receiving field strength detecting unit. A reception mode detection unit that detects whether a reception mode to be used is an in-vehicle mode or a portable mode in a reception electric field intensity determination method that determines a reception electric field intensity by comparing with a set reference value; An on-vehicle mode determination signal generator that sets a determination reference value for the mobile mode, a mobile mode determination signal generator that sets a determination reference value for the mobile mode, and either the on-vehicle mode determination signal generator or the mobile mode determination signal generator. A switch for selectively outputting the signal of the receiving mode detecting section according to the control signal of the receiving mode detecting section; And a comparison determining comparison determination unit and.
次に本発明について図面を参照して説明する。 Next, the present invention will be described with reference to the drawings.
第１図は本発明の一実施例のブロック図である。な
お、第１図は、受信装置のうちの受信電界強度判定部の
構成を示している。FIG. 1 is a block diagram of one embodiment of the present invention. FIG. 1 shows a configuration of a reception electric field strength determination unit in the reception device.
図において、受信信号入力部９から受信電界強度に対
応する中間周波信号が入力される。受信電界強度検出部
１はこの変化する中間周波信号を入力し、対応する検出
信号８を比較判定部３に供給する。受信モード検出部２
は利得信号入力部11から高周波部（図示せず）の設定利
得の情報信号を入力し、受信モードが車載モードか携帯
モードかを検出して切換部６に制御信号７を出力する。
今、受信モードが携帯モードの場合には図の点線のよう
に切換えられる。車載モード判定信号発生部４および携
帯モード判定信号発生部５はこの各モードの受信電界強
度の判定基準信号が設定されており、切換部６により選
択されて比較判定部３に入力される。比較判定部３は、
前述のその時点の検出信号８と切換部６の選択された判
定基準信号とが比較判定されて各モードに合致した正確
な受信電界強度の判定結果が判定結果出力部10から出力
される。なお、この判定基準値はこの受信装置の判定目
的に応じてサービス信号のS/Nの限界値、または、受信
装置のスレッショールドレベル等に対応して判定基準値
の設定を行う。In the figure, an intermediate frequency signal corresponding to a received electric field strength is input from a received signal input unit 9. The reception electric field strength detection unit 1 receives the changing intermediate frequency signal and supplies a corresponding detection signal 8 to the comparison determination unit 3. Receive mode detector 2
Receives an information signal of a set gain of a high-frequency unit (not shown) from a gain signal input unit 11, detects whether a reception mode is a vehicle-mounted mode or a portable mode, and outputs a control signal 7 to a switching unit 6.
Now, when the reception mode is the portable mode, switching is performed as shown by the dotted line in the figure. The in-vehicle mode determination signal generation unit 4 and the portable mode determination signal generation unit 5 are set with the reference signal for determining the received electric field strength in each mode. The comparison determination unit 3
The above-described detection signal 8 at that time is compared with the determination reference signal selected by the switching unit 6, and the determination result output unit 10 outputs an accurate determination result of the received electric field strength matching each mode. The determination reference value is set according to the S / N limit value of the service signal or the threshold level of the reception device according to the determination purpose of the reception device.
以上説明したように本発明は、車載モードと携帯モー
ドで受信電界強度判定基準を切り換えることにより、両
モード間で高周波部利得に差異がある場合でも正確な受
信電界強度の判定を行なうことができるという効果があ
る。As described above, according to the present invention, by switching the reception electric field strength determination reference between the in-vehicle mode and the portable mode, it is possible to accurately determine the reception electric field intensity even when there is a difference in the high-frequency section gain between the two modes. This has the effect.
第１図は本発明の一実施例のブロック図である。 １……受信電界強度検出部、２……受信モード検出部、
３……比較判定部、４……車載モード判定信号発生部、
５……携帯モード判定信号発生部、６……切換部、７…
…制御信号、８……検出信号、９……受信信号入力部、
10……判定結果出力部、11……利得信号入力部。FIG. 1 is a block diagram of one embodiment of the present invention. 1 ... reception electric field strength detection unit, 2 ... reception mode detection unit,
3 ... comparison / determination unit, 4 ... vehicle mode determination signal generation unit,
5: Portable mode determination signal generator, 6: Switching unit, 7 ...
... Control signal, 8 ... Detection signal, 9 ... Reception signal input part,
10 ... determination result output unit, 11 ... gain signal input unit.
Claims (1)
中間周波信号の強度に応じた信号を出力する受信電界強
度検出部と、この受信電界強度検出部から出力される値
をあらかじめ設定された基準値と比較することにより受
信電界強度を判定する受信電界強度判定方式において、
使用される受信モードが車載モードであるか携帯モード
であるかを検出する受信モード検出部と、車載モードの
判定基準値を設定した車載モード判定信号発生部と、携
帯モードの判定基準値を設定した携帯モード判定信号発
生部と、前記車載モード判定信号発生部または前記携帯
モード判定信号発生部のいずれかの信号を前記受信モー
ド検出部の制御信号により選択出力する切替器と、この
切替器の出力信号と前記受信電界強度検出部の検出信号
とを比較判定する比較判定部とを有することを特徴とす
る受信電界強度判定方式。1. A reception field strength detection section for outputting a signal corresponding to the strength of a reception intermediate frequency signal in a reception apparatus of a mobile communication terminal apparatus, and a value output from the reception field strength detection section is set to a predetermined reference. In the reception electric field strength determination method of determining the reception electric field strength by comparing with a value,
A reception mode detector that detects whether the reception mode used is the in-vehicle mode or the portable mode, an in-vehicle mode determination signal generator that sets the reference value for the in-vehicle mode, and a determination reference value for the portable mode A portable mode determination signal generator, a switch for selectively outputting a signal of the vehicle mode determination signal generator or the portable mode determination signal generator by a control signal of the reception mode detector, and a switch for the switch. A reception field strength determination method, comprising: a comparison determination unit that compares an output signal with a detection signal of the reception field strength detection unit.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23081589A JP2751455B2 (en) | 1989-09-05 | 1989-09-05 | Receive electric field strength judgment method |
| CA002022605A CA2022605C (en) | 1989-08-11 | 1990-08-13 | Portable radio transceiver system having improved adaptor and/or improved receive signal control arrangement |
| US07/566,672 US5261121A (en) | 1989-08-11 | 1990-08-13 | Portable radio transceiver system having improved adaptor and/or improved receiver signal control arrangement |
| EP90308869A EP0412852B1 (en) | 1989-08-11 | 1990-08-13 | Portable radio transceiver system having improved adaptor for transceiver and/or improved receive signal control arrangement |
| AU60952/90A AU639010B2 (en) | 1989-08-11 | 1990-08-13 | Portable radio transceiver system having improved adaptor for transceiver and/or improved receive signal control arrangement |
| DE69029619T DE69029619T2 (en) | 1989-08-11 | 1990-08-13 | Portable radio transceiver system with improved adapter for transceivers and / or improved received signal control arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23081589A JP2751455B2 (en) | 1989-09-05 | 1989-09-05 | Receive electric field strength judgment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0393327A JPH0393327A (en) | 1991-04-18 |
| JP2751455B2 true JP2751455B2 (en) | 1998-05-18 |
Family
ID=16913708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23081589A Expired - Fee Related JP2751455B2 (en) | 1989-08-11 | 1989-09-05 | Receive electric field strength judgment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2751455B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170261224A1 (en) * | 2013-11-26 | 2017-09-14 | Daikin Industries, Ltd. | Indoor unit |
-
1989
- 1989-09-05 JP JP23081589A patent/JP2751455B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0393327A (en) | 1991-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |