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JPS6474836A - Voice encoder - Google Patents

Voice encoder

Info

Publication number
JPS6474836A
JPS6474836A JP23115587A JP23115587A JPS6474836A JP S6474836 A JPS6474836 A JP S6474836A JP 23115587 A JP23115587 A JP 23115587A JP 23115587 A JP23115587 A JP 23115587A JP S6474836 A JPS6474836 A JP S6474836A
Authority
JP
Japan
Prior art keywords
reception level
voice
service
encoder
decoder
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.)
Pending
Application number
JP23115587A
Other languages
Japanese (ja)
Inventor
Nobuo Asano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP23115587A priority Critical patent/JPS6474836A/en
Publication of JPS6474836A publication Critical patent/JPS6474836A/en
Pending legal-status Critical Current

Links

Landscapes

  • Detection And Prevention Of Errors In Transmission (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE:To always provide a service with high speech quality, by switching voice encoders setting a certain reception level as a threshold value. CONSTITUTION:A voice encoder part 2 and a voice decoder part 9 are provided with specific characteristic curves 31, and a voice encoder part 3 and a voice decoder part 10 are provided with prescribed curves 32. Voice input 1 is processed at the encoder part 2 and the decoder part 9 at a part where a large reception level and a high level with a few of bit errors are provided, and the service with high speech quality can be provided. Also, it is processed at the encoder part 3 and the decoder part 10 at the part where a low reception level is provided and a large amount of bit errors exist, and communication resistant to the bit error is performed. A switching processing part 7 always monitors the reception level, and switches a switch 4 setting a certain reception level as the threshold value, and operates a device according to the characteristic curve 33. By constituting the device in such way, it is possible to always keep the service with high speech quality and a speech even at the part with a low reception level.
JP23115587A 1987-09-17 1987-09-17 Voice encoder Pending JPS6474836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23115587A JPS6474836A (en) 1987-09-17 1987-09-17 Voice encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23115587A JPS6474836A (en) 1987-09-17 1987-09-17 Voice encoder

Publications (1)

Publication Number Publication Date
JPS6474836A true JPS6474836A (en) 1989-03-20

Family

ID=16919160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23115587A Pending JPS6474836A (en) 1987-09-17 1987-09-17 Voice encoder

Country Status (1)

Country Link
JP (1) JPS6474836A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6256357B1 (en) 1992-03-26 2001-07-03 Matsushita Electric Industrial Co., Ltd. Communication system
WO2002052744A1 (en) * 2000-12-26 2002-07-04 Mikio Maruyama Speech transmitting device and method, speech receiving device and method, speech transmitting/receiving system and method, and recorded medium
US6549716B1 (en) 1992-03-26 2003-04-15 Matsushita Electric Industrial Co., Ltd. Communication system
USRE38483E1 (en) 1992-03-26 2004-03-30 Matsushita Electric Industrial Co., Ltd. Communication system
US6724976B2 (en) 1992-03-26 2004-04-20 Matsushita Electric Industrial Co., Ltd. Communication system
US6728467B2 (en) 1992-03-26 2004-04-27 Matsushita Electric Industrial Co., Ltd. Communication system
US7158577B1 (en) 1992-03-26 2007-01-02 Matsushita Electric Industrial Co., Ltd. Communication system
USRE42643E1 (en) 1991-03-27 2011-08-23 Panasonic Corporation Communication system
USRE43093E1 (en) 1992-03-26 2012-01-10 Panasonic Corporation Communication system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59228440A (en) * 1983-06-09 1984-12-21 Fujitsu Ltd Data transmission system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59228440A (en) * 1983-06-09 1984-12-21 Fujitsu Ltd Data transmission system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE42643E1 (en) 1991-03-27 2011-08-23 Panasonic Corporation Communication system
US7146092B2 (en) 1992-03-19 2006-12-05 Matsushita Electric Industrial Co., Ltd. Communication system
US7158577B1 (en) 1992-03-26 2007-01-02 Matsushita Electric Industrial Co., Ltd. Communication system
US7280806B2 (en) 1992-03-26 2007-10-09 Matsushita Electric Industrial Co., Ltd. Communication system
US6724976B2 (en) 1992-03-26 2004-04-20 Matsushita Electric Industrial Co., Ltd. Communication system
US6728467B2 (en) 1992-03-26 2004-04-27 Matsushita Electric Industrial Co., Ltd. Communication system
USRE38513E1 (en) 1992-03-26 2004-05-11 Matsushita Electric Industrial Co., Ltd. Communication system
US6549716B1 (en) 1992-03-26 2003-04-15 Matsushita Electric Industrial Co., Ltd. Communication system
US6256357B1 (en) 1992-03-26 2001-07-03 Matsushita Electric Industrial Co., Ltd. Communication system
USRE38483E1 (en) 1992-03-26 2004-03-30 Matsushita Electric Industrial Co., Ltd. Communication system
US7302007B1 (en) 1992-03-26 2007-11-27 Matsushita Electric Industrial Co., Ltd. Communication system
US7352822B2 (en) 1992-03-26 2008-04-01 Matsushita Electric Industrial Co., Ltd. Telephone for transmitting an uplink signal to a base station and for receiving first and second downlink signals from the base station, and a base station for receiving an uplink signal from a telephone and transmitting first and second downlink signals to the telephone
US7496146B2 (en) 1992-03-26 2009-02-24 Panasonic Corporation Communication system
US7542729B2 (en) 1992-03-26 2009-06-02 Panasonic Corporation Communication system
USRE41146E1 (en) 1992-03-26 2010-02-23 Panasonic Corporation Communication system
USRE43093E1 (en) 1992-03-26 2012-01-10 Panasonic Corporation Communication system
WO2002052744A1 (en) * 2000-12-26 2002-07-04 Mikio Maruyama Speech transmitting device and method, speech receiving device and method, speech transmitting/receiving system and method, and recorded medium

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