NDLI: Mixed signal decoder for audio frequency FSK applications with transmission rate comparable to the carrier frequencies

Content Provider	IEEE Xplore Digital Library
Author	Hamed, H.M. Zaghloul, M.
Copyright Year	2000
Description	Author affiliation: Sch. of Eng. & Appl. Sci., George Washington Univ., Washington, DC, USA (Hamed, H.M.)
Abstract	Frequency shift keying (FSK) finds application in low frequency transmission over band limited audio frequency channels, such as calling number identification, a service currently provided by telephone service providers. The conventional approaches to FSK demodulation work well when the transmitted frequencies are significantly higher than the baud rate. However, when the baud rate is comparable to the transmission frequencies, they become costly to implement. This paper describes a mixed signal approach to FSK demodulation suitable in particular to the decoding of this type of signal, based on a finite state machine (FSM). The proposed circuit consists of an analog interface followed by a threshold device, which is itself followed by the FSM.
Starting Page	960
Ending Page	963
File Size	408695
Page Count	4
File Format	PDF
ISBN	0780364759
DOI	10.1109/MWSCAS.2000.952913
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-08-08
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency shift keying Decoding Demodulation Signal processing Circuits Detectors Telephony Automata Bit rate Phase locked loops
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Mixed signal decoder for audio frequency FSK applications with transmission rate comparable to the carrier frequencies