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SpectraLink Corporation
Poly Inc., formerly Polycom, is an American multinational corporation that develops video, voice and content collaboration and communication technology. Poly is a subsidiary of HP Inc. Polycom was co-founded in 1990 by Brian L Hinman and Jeffrey Rodman. In 2018 Polycom was acquired by Plantronics and in 2019 the name of the combined entity was changed to Poly. In 2022, it was sold to HP. History Polycom was co-founded in 1990 by Brian L Hinman and Jeffrey Rodman, who were colleagues at PictureTel Corp. The startup was based in San Francisco, California but soon moved to San Jose, California, with Hinman using $400,000 of his own money and $100,000 from friends as seed money. Oak Investment Partners and Accel Partners then contributed an additional $3 million in venture capital. Polycom's stated goal was to support all the major ways people communicate, specifically including audio, content such as documents, and video. Its first products to market were audio conferencing sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silicon Valley Business Journal
American City Business Journals, Inc. (ACBJ) is an American newspaper publisher based in Charlotte, North Carolina. ACBJ publishes ''The Business Journals'', which contains local business news for 44 markets in the United States with each market's edition named for that market, and also publishes ''Hemmings Motor News'' and ''Inside Lacrosse''. The company is owned by Advance Publications and receives revenue from display advertising and classified advertising in its weekly newspaper and online advertising on its website and from a subscription business model. The bizjournals.com website, using the overarching online title ''The Business Journal'', contains local business news from various cities in the United States, along with an archive that contains more than 5 million business news articles published since 1996. it receives over 3.6 million readers each week. History American City Business Journals, Inc. was founded in 1982 by Mike K. Russell with the launch of the ''Kansa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spatial Audio
3D audio effects are a group of sound effects that manipulate the sound produced by stereo speakers, surround-sound speakers, speaker-arrays, or headphones. This frequently involves the virtual placement of sound sources anywhere in three-dimensional space, including behind, above or below the listener. 3-D audio (processing) is the spatial domain convolution of sound waves using head-related transfer functions. It is the phenomenon of transforming sound waves (using head-related transfer function or HRTF filters and cross talk cancellation techniques) to mimic natural sounds waves, which emanate from a point in a 3-D space. It allows trickery of the brain using the ears and auditory nerves, pretending to place different sounds in different 3-D locations upon hearing the sounds, even though the sounds may just be produced from only two speakers (dissimilar to surround sound). Complete 3D positional audio Using head-related transfer functions and reverberation, the changes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AAC-LD
The MPEG-4 Low Delay Audio Coder (a.k.a. AAC Low Delay, or AAC-LD) is audio compression standard designed to combine the advantages of perceptual audio coding with the low delay necessary for two-way communication. It is closely derived from the MPEG-2 Advanced Audio Coding (AAC) standard. It was published in MPEG-4 Audio Version 2 (ISO/ IEC 14496-3:1999/Amd 1:2000) and in its later revisions. AAC-LD uses a version of the modified discrete cosine transform (MDCT) audio coding technique called the LD-MDCT. AAC-LD is widely used by Apple as the voice-over-IP (VoIP) speech codec in FaceTime. Real time CODEC requirements The most stringent requirements are a maximum algorithmic delay of only 20 ms and a good audio quality for all kind of audio signals including speech and music. * The AAC-LD coding scheme bridges the gap between speech coding schemes and high quality audio coding schemes. Two-way communication with AAC-LD is possible on usual analog telephone lines and via I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latency (audio)
Latency refers to a short period of delay (usually measured in milliseconds) between when an audio signal enters a system, and when it emerges. Potential contributors to latency in an audio system include analog-to-digital conversion, buffering, digital signal processing, transmission time, digital-to-analog conversion, and the speed of sound in the transmission medium. Latency can be a critical performance metric in professional audio including sound reinforcement systems, foldback systems (especially those using in-ear monitors) live radio and television. Excessive audio latency has the potential to degrade call quality in telecommunications applications. Low latency audio in computers is important for interactivity. Telephone calls In all systems, latency can be said to consist of three elements: codec delay, playout delay and network delay. Latency in telephone calls is sometimes referred to as delay; the telecommunications industry also uses the term ''quality of exp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bandwidth (computing)
In computing, bandwidth is the maximum rate of data transfer across a given path. Bandwidth may be characterized as network bandwidth, data bandwidth, or digital bandwidth. This definition of ''bandwidth'' is in contrast to the field of signal processing, wireless communications, modem data transmission, digital communications, and electronics, in which ''bandwidth'' is used to refer to the signal bandwidth measured in hertz, meaning the frequency range between lowest and highest attainable frequency while meeting a well-defined impairment level in signal power. The actual bit rate that can be achieved depends not only on the signal bandwidth but also on the noise on the channel. Network capacity The term ''bandwidth'' sometimes defines the net bit rate ''peak bit rate'', ''information rate'', or physical layer ''useful bit rate'', channel capacity, or the maximum throughput of a logical or physical communication path in a digital communication system. For example, bandwi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latency (engineering)
Latency, from a general point of view, is a time delay between the Causality, cause and the effect of some physical change in the system being observed. Lag (video games), Lag, as it is known in Gaming culture, gaming circles, refers to the latency between the input to a simulation and the visual or auditory response, often occurring because of network delay in online games. The original meaning of “latency”, as used widely in psychology, medicine and most other disciplines, derives from “latent”, a word of Latin origin meaning “hidden”. Its different and relatively recent meaning (this topic) of “lateness” or “delay” appears to derive from its superficial similarity to the word “late”, from the old English “laet”. Latency is physically a consequence of the limited velocity at which any Event (relativity), physical interaction can propagate. The magnitude of this velocity is always less than or equal to the speed of light. Therefore, every physical s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Session Initiation Protocol
The Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, and terminating communication sessions that include voice, video and messaging applications. SIP is used in Internet telephony, in private IP telephone systems, as well as mobile phone calling over LTE (telecommunication), LTE (VoLTE). The protocol defines the specific format of messages exchanged and the sequence of communications for cooperation of the participants. SIP is a text-based protocol, incorporating many elements of the Hypertext Transfer Protocol (HTTP) and the Simple Mail Transfer Protocol (SMTP). A call established with SIP may consist of multiple media streams, but no separate streams are required for applications, such as text messaging, that exchange data as payload in the SIP message. SIP works in conjunction with several other protocols that specify and carry the session media. Most commonly, media type and parameter negotiation and media setup are performed with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obihai Technology
Obihai Technology was a company that manufactured analog telephone adapters, supporting Session Initiation Protocol (SIP), XMPP, and Google Voice compatible Internet telephony. Obihai was sold to Polycom in 2018, with Poly and Plantronics sold to HP in 2022. Most items in the former Obihai product line have been either rebranded as Poly or discontinued. History The company, based in California's Silicon Valley, was founded in 2010 by Jan Fandrianto and Sam Sin, the same people who introduced the first analog telephone adaptors as Komodo Technology in the 1990s and formed Sipura Technology in 2002. Both prior companies were acquired by Cisco Systems, in 2000 and 2005 respectively, and integrated into that company's Linksys division. Linksys was sold to Belkin in 2013. In January 2018, Polycom acquired Obihai. In 2022, Poly was sold onwards to HP. In December 2021, Obahai's consumer-oriented analogue telephone adapter line was discontinued, with support ended in December 202 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wall Street Journal
''The Wall Street Journal'' (''WSJ''), also referred to simply as the ''Journal,'' is an American newspaper based in New York City. The newspaper provides extensive coverage of news, especially business and finance. It operates on a subscription model, requiring readers to pay for access to most of its articles and content. The ''Journal'' is published six days a week by Dow Jones & Company, a division of News Corp. As of 2023, ''The'' ''Wall Street Journal'' is the largest newspaper in the United States by print circulation, with 609,650 print subscribers. It has 3.17 million digital subscribers, the second-most in the nation after ''The New York Times''. The newspaper is one of the United States' newspapers of record. The first issue of the newspaper was published on July 8, 1889. The editorial page of the ''Journal'' is typically center-right in its positions. The newspaper has won 39 Pulitzer Prizes. History Founding and 19th century A predecessor to ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Justice Department
The United States Department of Justice (DOJ), also known as the Justice Department, is a federal executive department of the U.S. government that oversees the domestic enforcement of federal laws and the administration of justice. It is equivalent to the justice or interior ministries of other countries. The department is headed by the U.S. attorney general, who reports directly to the president of the United States and is a member of the president's Cabinet. Pam Bondi has served as U.S. attorney general since February 4, 2025. The Justice Department contains most of the United States' federal law enforcement agencies, including the Federal Bureau of Investigation, the U.S. Marshals Service, the Bureau of Alcohol, Tobacco, Firearms and Explosives, the Drug Enforcement Administration, and the Federal Bureau of Prisons. The department also has eight divisions of lawyers who represent the federal government in litigation: the Criminal, Civil, Antitrust, Tax, Civil Rights, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tax Inversion
A tax inversion or corporate tax inversion is a form of tax avoidance where a corporation restructures so that the current parent is replaced by a foreign parent, and the original parent company becomes a subsidiary of the foreign parent, thus moving its tax residence to the foreign country. Executives and operational headquarters can stay in the original country. The US definition requires that the original shareholders remain a majority control of the post-inverted company. In United States federal legislation, US federal legislation a company which has been restructured in this manner is referred to as an inverted domestic corporation, and the term "corporate expatriate" is also used, for example in the Homeland Security Act of 2002. The majority of the less than 100 material tax inversions recorded since 1993 have been of US corporations (85 inversions), seeking to pay less to the US corporate tax system. The only other jurisdiction to experience a material outflow of tax inv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
