Betamax - Wikipedia
网页Betamax (also known as Beta, as in its logo) is a consumer-level analog recording and cassette format of magnetic tape for video, commonly known as a video cassette recorder. It was developed by Sony and was released in Japan on May 10, 1975, [1] followed by the US in November of the same year.
Betamax - 维基百科，自由的百科全书
网页Sony的Betamax，簡稱Beta，是一种年份较早的专业用 19.1毫米（0.75英寸） U-matic 录像带演进而来的 12.7毫米（0.50英寸） 家用录像带格式。它于1975年4月16日发表，同年5月10日上市。如同1976年JVC发表的VHS制式，它没有guard band，使用水平录制以减少漏话。Betamax名字的 ...
Betamax - 百度百科
网页Betamax以Beta Hi-Fi的名称发布了录于影带上的高真实音频。 对于 NTSC制式 ，Beta Hi-Fi透过放置一对FM载体于颜色(C)与光(Y)载体中间来实现，这个操作被称为音频调幅。
Videotape format war - Wikipedia
网页The videotape format war was a period of competition or "format war" of incompatible models of consumer-level analog video videocassette and video cassette recorders (VCR) in the late 1970s and the 1980s, mainly involving the Betamax and Video Home System (VHS) formats. VHS ultimately emerged as the preeminent format.
录像机制式之争：Betamax 大战 VHS (上) - 知乎 - 知乎专栏
网页得益于生产U-matic制式设备积累的技术与经验，索尼率先在1975年初向市场发布了基于U-matic制式的改进型Betamax制式，其采用1/2英寸宽度的磁带，带盒的尺寸为长15.6cm，宽9.6cm，厚2.5cm，标准走带速度每秒4cm，标准播放时间长度为1小时，产品针对的是家用市 …
June 7, 1975: Before Digital, Before VHS ... There Was Betamax
网页2011年6月7日 — 1975: Sony introduces the Betamax video recorder. Revolutionary for its day, the Betamax format was on its way to becoming the industry standard until the appearance of JVC's VHS a year later.
Sony Betamax - Museum of Failure
网页2020年5月14日 — In 1975, Sony released an innovative home video tape recorder called Betamax. Only a year later, their much smaller competitor JVC released the competing VHS format. The Video Format War had begun! Betamax was …
网页2002年8月28日 — Sony’s 1974 launch of its Betamax videotape recording system was a continuation of its record of technological leadership in consumer electronics. In the mid-1970s, however, a second competing standard for videocassette recorders (VCR) was being developed. The strategic issue facing Sony was how to …
The Betamax vs VHS Format War - Media College
网页2005年5月1日 — The Betamax vs VHS Format War. Sony's Betamax video standard was introduced in 1975, followed a year later by JVC's VHS. For around a decade the two standards battled for dominance, with VHS eventually emerging as the winner. The victory was not due to any technical superiority (Betamax is arguably a …
The Betamax Format - Media College
网页The Betamax Format. Betamax was developed by Sony and launched in 1975. It was the first commercially successful home video standard. In the famous format war which followed, Betamax lost to JVC's VHS system. Betamax began the home video revolution. For the first time people were able to do three things: