Smartphone Compatible Operations Manual
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The History of the Telephone
STUDENT VERSION THE HISTORY OF THE TELEPHONE Activity Items There are no separate items for this activity. Student Learning Objectives • I will be able to name who invented the telephone and say why that invention is important. • I will be able to explain how phones have changed over time. THE HISTORY OF THE TELEPHONE STUDENT VERSION NAME: DATE: The telephone is one of the most important inventions. It lets people talk to each other at the same time across long distances, changing the way we communicate today. Alexander Graham Bell, the inventor of the telephone CENSUS.GOV/SCHOOLS HISTORY | PAGE 1 THE HISTORY OF THE TELEPHONE STUDENT VERSION 1. Like many inventions, the telephone was likely thought of many years before it was invented, and by many people. But it wasn’t until 1876 when a man named Alexander Graham Bell, pictured on the previous page, patented the telephone and was allowed to start selling it. Can you guess what “patented” means? CENSUS.GOV/SCHOOLS HISTORY | PAGE 2 THE HISTORY OF THE TELEPHONE STUDENT VERSION 2. The picture below, from over 100 years ago, shows Alexander Graham Bell using one of his first telephones to make a call from New York to Chicago. Alexander Graham Bell making a telephone call from New York to Chicago in 1892 Why do you think it was important that someone in New York could use the telephone to talk to someone in Chicago? CENSUS.GOV/SCHOOLS HISTORY | PAGE 3 THE HISTORY OF THE TELEPHONE STUDENT VERSION 3. Today, millions of people make phone calls each day, and many people have a cellphone. -
TELEPHONE TRAINING GUIDE] Fall 2010
[TELEPHONE TRAINING GUIDE] Fall 2010 Telephone Training Guide Multi Button and Single Line Telephones Office of Information Technology, - UC Irvine 1 | Page [TELEPHONE TRAINING GUIDE] Fall 2010 Personal Profile (optional) ........................................... 10 Group Pickup (optional) ............................................... 10 Table of Contents Abbreviated Dialing (optional) ..................................... 10 Multi-Button Telephone General Description Automatic Call-Back ..................................................... 10 ....................................................................................... 3 Call Waiting .................................................................. 10 Keys and Buttons ............................................................ 3 Campus Dialing Instructions ............................ 11 Standard Preset Function Buttons .................................. 3 Emergency 911 ............................................................. 11 Sending Tones (TONE) .................................................... 4 Multi-Button Telephone Operations ................ 4 Answering Calls ............................................................... 4 Placing Calls .................................................................... 4 Transferring Calls ............................................................ 4 Inquiry Calls .................................................................... 4 Exclusive Hold ................................................................. 4 -
Learning About Hearing Aids
Learning About AUDIOLOGY Information Series Hearing Aids How do hearing aids work? Features available in hearing aids Hearing aids are electronic devices that collect sound, am- • Automatic volume control means that the hearing aid plify it, and direct the amplified sound into the ear. While automatically analyzes incoming sound and amplifies it the style of hearing aid may vary, all hearing aids have based on your hearing loss. Soft sounds will be similar components: amplified more than loud sounds, allowing all • A microphone to pick up sound sounds to be comfortable for you. With automatic volume control, you will not need a volume control but- • An amplifier to make sounds louder ton or wheel on your hearing aid. • A receiver (miniature loudspeaker) to deliver the • Directional microphones amplify sounds in front of you amplified sound into the ear and minimize sounds coming from behind. This helps • Batteries for power you focus on sound you are most interested in hearing. This technology can also be automated. Some hearing aids also have earmolds (or dome ear pieces) to direct the flow of sound into the ear and • Telephone coils (t-coils) are small coils inside some enhance sound quality. hearing aids that allow you to hear speech coming from the phone clearly. This feature is also useful with loop Styles of hearing aids listening systems that are used in some large group areas. • In-the-canal (ITC) • Feedback (whistling) control automatically analyzes • Completely-in-the-canal (CIC) feedback from the hearing aid and adjusts the amplification to minimize this unwanted squealing • In-the-ear (ITE) noise. -
A Study on Wireless Hearing Aids System Configuration and Simulation
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by ScholarBank@NUS A STUDY ON WIRELESS HEARING AIDS SYSTEM CONFIGURATION AND SIMULATION TANG BIN NATIONAL UNIVERSITY OF SINGAPORE 2005 A STUDY ON WIRELESS HEARING AIDS SYSTEM CONFIGURATION AND SIMULATION TANG BIN (B. ENG) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE GRADUATE PROGRAM IN BIOENGINEERING NATIONAL UNIVERSITY OF SINGAPORE 2005 ACKNOWLEDGEMENT I would like to thank my supervisors, Dr. Ram Singh Rana, A/Prof. Hari Krishna Garg, and Dr. Wang De Yun for their invaluable guidance, advice and motivation. Without their generous guidance and patience, it would have been an insurmountable task in completing this work. Their research attitudes and inspirations have impressed me deeply. I have learned from them not only how to do the research work, but also the way to difficulties and life. I would also like to extend my appreciation to A/Prof. Hanry Yu and Prof. Teoh Swee Hin, for the founding and growing of the Graduate Program in bioengineering, and also the perfect research environment they have created for the students. Special thanks to Dr. Hsueh Yee Lim from National University Hospital for her precious suggestions and encouragement as a hearing clinician to my research work. Thanks my colleague Zhang Liang, who is pursuing his master degree in department of Electrical and Computer Engineering. The valuable suggestions and discussions with him have contributed a lot to this work. This work would have been impossible without the consent for Dr. Wang De Yun to support my scholarship. -
Remote Microphone + Operations Manual
Remote Microphone + OPERATIONS MANUAL Table of Contents Overview � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 2 Basic Use � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6 Daily Use � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 8 Wearing the Remote Mic + � � � � � � � � � � � � � � � � � � � � � � 10 Pairing with Hearing Aids � � � � � � � � � � � � � � � � � � � � � � � 11 Pairing with Bluetooth Devices � � � � � � � � � � � � � � � � � � � 13 Using the Input Mode Button � � � � � � � � � � � � � � � � � � � � 14 Remote Microphone � � � � � � � � � � � � � � � � � � � � � � � � � � � 14 Bluetooth Phone and Audio � � � � � � � � � � � � � � � � � � � � � 15 Loop System � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 17 FM System � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 17 Line-In � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 17 Start/Stop Audio Streaming � � � � � � � � � � � � � � � � � � � � � 18 Assembling the Power Adapter � � � � � � � � � � � � � � � � � � � 19 Troubleshooting � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 20 Safety Information � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 23 Regulatory Notices � � � � � � � � � � � � � � � � � � � � � � � � � � � � 26 2 | Overview Overview | 3 The Remote Microphone + is designed to stream 2 audio from different audio sources directly to your 2.4 3 GHz wireless hearing aids. 1 When worn by a distant -
Signal Processing in High-End Hearing Aids: State of the Art, Challenges, and Future Trends
EURASIP Journal on Applied Signal Processing 2005:18, 2915–2929 c 2005 V. Hamacher et al. Signal Processing in High-End Hearing Aids: State of the Art, Challenges, and Future Trends V. Hamacher, J. Chalupper, J. Eggers, E. Fischer, U. Kornagel, H. Puder, and U. Rass Siemens Audiological Engineering Group, Gebbertstrasse 125, 91058 Erlangen, Germany Emails: [email protected], [email protected], [email protected], eghart.fi[email protected], [email protected], [email protected], [email protected] Received 30 April 2004; Revised 18 September 2004 The development of hearing aids incorporates two aspects, namely, the audiological and the technical point of view. The former focuses on items like the recruitment phenomenon, the speech intelligibility of hearing-impaired persons, or just on the question of hearing comfort. Concerning these subjects, different algorithms intending to improve the hearing ability are presented in this paper. These are automatic gain controls, directional microphones, and noise reduction algorithms. Besides the audiological point of view, there are several purely technical problems which have to be solved. An important one is the acoustic feedback. Another instance is the proper automatic control of all hearing aid components by means of a classification unit. In addition to an overview of state-of-the-art algorithms, this paper focuses on future trends. Keywords and phrases: digital hearing aid, directional microphone, noise reduction, acoustic feedback, classification, compres- sion. 1. INTRODUCTION being close to each other. Details regarding this problem and possible solutions are discussed in Section 5. Note that Driven by the continuous progress in the semiconductor feedback suppression can be applied at different stages of technology, today’s high-end digital hearing aids offer pow- the signal flow dependent on the chosen strategy. -
Telecommunications Provider Locator
Telecommunications Provider Locator Industry Analysis & Technology Division Wireline Competition Bureau February 2003 This report is available for reference in the FCC’s Information Center at 445 12th Street, S.W., Courtyard Level. Copies may be purchased by calling Qualex International, Portals II, 445 12th Street SW, Room CY- B402, Washington, D.C. 20554, telephone 202-863-2893, facsimile 202-863-2898, or via e-mail [email protected]. This report can be downloaded and interactively searched on the FCC-State Link Internet site at www.fcc.gov/wcb/iatd/locator.html. Telecommunications Provider Locator This report lists the contact information and the types of services sold by 5,364 telecommunications providers. The last report was released November 27, 2001.1 All information in this report is drawn from providers’ April 1, 2002, filing of the Telecommunications Reporting Worksheet (FCC Form 499-A).2 This report can be used by customers to identify and locate telecommunications providers, by telecommunications providers to identify and locate others in the industry, and by equipment vendors to identify potential customers. Virtually all providers of telecommunications must file FCC Form 499-A each year.3 These forms are not filed with the FCC but rather with the Universal Service Administrative Company (USAC), which serves as the data collection agent. Information from filings received after November 22, 2002, and from filings that were incomplete has been excluded from the tables. Although many telecommunications providers offer an extensive menu of services, each filer is asked on Line 105 of FCC Form 499-A to select the single category that best describes its telecommunications business. -
Hearing Loss and Hearing Aid Options Options for Style and Technology Understanding Hearing Loss
YOUR VALUES YOUR PREFERENCES YOUR CHOICE Hearing Loss and Hearing Aid Options Options for Style and Technology Understanding Hearing Loss Hearing Loss These problems can get worse with age. Hearing loss caused by aging usually affects high pitch sounds more than low pitch If you have hearing loss, part of your ear has been damaged. sounds. A hearing aid cannot bring back normal hearing but it can help you hear better. Hearing aids can help you hear certain pitches you are missing. However, hearing aids cannot give you back normal hearing. Hearing loss affects each person differently. For example, one person with mild hearing loss will have no problems Hearing Aids with his or her day-to-day activities. Another person may Hearing aids are devices that make sounds louder at many have a lot of problems hearing and understanding others. different pitches. Most people lose their hearing over time. It will take time for There are many different types and styles of hearing aids. you to get used to hearing the sounds you have been missing. Hearing aids can: Call your primary care provider if you are having trouble make the sound louder so it can reach the parts of the ear hearing and understanding others. He or she may want you that are still working to see an audiologist (hearing specialist) to have a hearing test. help you better understand people talking to you in a What are the effects of hearing loss? different listening situations Hearing loss that is not treated can affect communication help you keep the volume on the television lower. -
Low-Voltage CMOS Log-Companding Techniques for Audio Applications
(c) 2004 Kluwer Academic Publishers http://dx.doi.org/10.1023/B:ALOG.0000011163.29809.57 Low-Voltage CMOS Log-Companding Techniques for Audio Applications Francisco Serra-Graells ([email protected]) Centro Nacional de Microelectr´onica, Institut de Microelect`onica de Barcelona Adoraci´onRueda ([email protected]) Centro Nacional de Microelectr´onica, Instituto de Microelectr´onica de Sevilla Jos´eLuis Huertas ([email protected]) Centro Nacional de Microelectr´onica, Instituto de Microelectr´onica de Sevilla Abstract. This paper presents a collection of novel current-mode circuit techniques for the integration of very low-voltage (down to 1V) low-power (few hundreds of ¹A) complete SoCs in CMOS technologies. The new design proposal is based on both, the Log Companding theory and the MOSFET operating in subthreshold. Several basic building blocks for audio amplification, AGC and arbitrary filtering are given. The feasibility of the proposed CMOS circuits is illustrated through experimental data for different design case studies in 1.2¹m and 0.35¹m VLSI technologies. Keywords: Low-Voltage, CMOS, Subthreshold, Log, Companding, Audio, Design, Hearing-Aids 1. Introduction The increasing market demand on portable System-on-Chip (SoC) ap- plications has stimulated the search for new low-voltage and low-power analog techniques for mixed VLSI circuits. The critical design con- strains in such products come from the battery technology itself, which imposes very low-voltage supply operation (down to 1.1V) combined with low-power figures (below 1mA) in order to extend battery life as long as possible. In order to overcome the very low-voltage restriction in CMOS tech- nologies, supply multipliers based on charge pumps [1] are commonly used, although some effort are being done in switched-capacitors filters for very low-voltage compatibility [2]. -
Dual Tone Multi Frequency (DTMF) Signal Generation and Detection Using MATLAB Software Nihat Pamuk Turkish Electricity Transmission Company, [email protected]
University of Business and Technology in Kosovo UBT Knowledge Center UBT International Conference 2015 UBT International Conference Nov 7th, 9:00 AM - 5:00 PM Dual Tone Multi Frequency (DTMF) signal generation and detection using MATLAB software Nihat Pamuk Turkish Electricity Transmission Company, [email protected] Ziynet Pamuk Sakarya University, [email protected] Follow this and additional works at: https://knowledgecenter.ubt-uni.net/conference Part of the Computer Sciences Commons, and the Digital Communications and Networking Commons Recommended Citation Pamuk, Nihat and Pamuk, Ziynet, "Dual Tone Multi Frequency (DTMF) signal generation and detection using MATLAB software" (2015). UBT International Conference. 97. https://knowledgecenter.ubt-uni.net/conference/2015/all-events/97 This Event is brought to you for free and open access by the Publication and Journals at UBT Knowledge Center. It has been accepted for inclusion in UBT International Conference by an authorized administrator of UBT Knowledge Center. For more information, please contact [email protected]. International Conference on Computer Science and Communication Engineering, Nov 2015 Dual Tone Multi Frequency (DTMF) signal generation and detection using MATLAB software Nihat Pamuk1, Ziynet Pamuk2 1Turkish Electricity Transmission Company 2Sakarya University, Electric - Electronic Engineering Department [email protected], [email protected] Abstract. In this study, Dual Tone Multi Frequency (DTMF) signal generation and detection is implemented by using Goertzel Algorithm in MATLAB software. The DTMF signals are generated by using Cool Edit Pro Version 2.0 program for DTMF tone detection. The DTMF signal generation and detection algorithm are based on International Telecommunication Union (ITU) recommendations. Frequency deviation, twist, energy and time duration tests are performed on the DTMF signals. -
What to Do If You Hear Radio Communications on Your Telephone
What to do if you hear radio communications on your telephone Interference occurs when your telephone instrument fails to "block out" a nearby radio communication. Potential interference problems begin when the telephone is built at the factory. All telephones contain electronic components that are sensitive to radio frequencies, but cordless telephones are particularly susceptible because they use radio transmitters/receivers. Cordless telephones are also highly sensitive to electrical noise, (electric fences) radio interference, and the communications of other nearby cordless phones. Cordless phones with more features like messaging, redial and intercom, contain more electronic components; this creates a greater potential for outside interference. If the manufacturer does not build in interference protection, these components may react to nearby radio communications. For example, you could hear the transmission of a local radio station through your telephone’s handset. This is not necessarily a sign that the interference is intentional or that the interfering radio transmitter is illegal but that your equipment has no, or inadequate, protection. If you own an unprotected telephone, as the radio environment around you changes, you may sometimes hear unwanted radio communications. This is a technical problem, not a law enforcement problem Because interference problems begin at the factory, you should send your complaint to the manufacturer who built your telephone. It is important that you follow through and contact the manufacturer of your phone if you are having an interference problem. The company needs to know if you are unhappy about your phone’s failure to block out radio communications. Also, the manufacturer knows the designs of its telephones and may be able to suggest a solution for your specific phone. -
Telephone Equipment Distribution Program Can Help
DHS-4005-ENG 8-16 Do you have trouble using your telephone? The Telephone Equipment Distribution Program can help What is the Telephone Equipment How do I qualify? Distribution (TED) Program? You must provide proof that you: The TED Program provides telephone equip- Are a Minnesota resident ment to Minnesotans who have a hearing loss, Have a hearing loss, speech disability or speech disability or physical disability that physical disability that limits your use of a limits their use of a standard telephone. standard telephone What equipment is loaned? Have telephone service or have applied for telephone service Amplified telephones that clarify voices Have a family income less than or equal to Braille telephones for people who these guidelines: are deafblind family size annual gross income Captioned telephones 1 $49,081 Speaker phones 2 $64,183 Speech amplifying telephones 3 $79,285 4 $94,387 Telephone equipment for specific accommodations These guidelines are effective October 1, 2016 to September 30, 2017. Telephone ring signalers What if my income is too high to How much does this service cost? qualify? The equipment is provided on a long-term basis The TED Program can provide information as at no cost. to where to buy the telephone equipment. In Minnesota, a surcharge on all telephone lines funds the TED Program. ADA2 (12-12) This information is available in accessible formats for individuals with disabilities by calling 1-800-657-3663 or by using your preferred relay service. For other information on disability rights and protections, contact the agency’s ADA coordinator. How do I apply? Where are the regional offices? New applicants – Fill out and sign the application.