Editing Cassette deck (section)

==== Integration of digital electronics, from the 1980s ====
As a part of the [[Digital Revolution]], the ongoing development of electronics technology [[Moore's Law|decreased the cost of digital circuitry]] to the point that the technology could be applied to consumer electronics. The application of such [[digital electronics]] to cassette decks provides an early example of [[mechatronic]] design, which aims to enhance mechanical systems with electronic components in order to improve performance, increase system flexibility, or reduce cost.<ref>{{cite book |last=van Amerongen |first=Job |editor-last=Bishop |editor-first=Robert H. |title=Mechatronics: An Introduction |publisher=CRC Press |date=2005 |page=12.1 |chapter=Chapter 12: The Role of Controls in Mechatronics |isbn=978-1-4200-3724-1|url=https://books.google.com/books?id=CTfQPQRooMgC}}</ref> The inclusion of [[Logic gate|logic circuitry]] and [[solenoid]]s into the transport and control mechanisms of cassette decks, often referred to ''logic control'', contrasts with earlier ''piano-key'' transport controls and mechanical linkages. One goal of using logic circuitry in cassette decks or recorders was to [[Error-tolerant design|minimize equipment damage upon incorrect user input]] by including [[fail-safe]]s into the transport and control mechanism.<ref>{{cite patent | country = United States | number = 3347996 A | title = Control system for a magnetic recorder | pubdate = 1967-10-17 | fdate = 1963-10-25 | pridate = 1962-10-27 | inventor = Goji Uchikoshi | url = https://www.google.com/patents/US3347996}} "By the provision of a logical circuit in the control circuit for a magnetic recorder, even when the keys of the key board are actuated in any desired sequence, the magnetic recorder and its associated devices can be promptly and precisely controlled without causing any damages thereon."</ref> Such fail-safe behavior was described in a review by [[Julian Hirsch]] of a particular cassette deck featuring logic control.<ref>{{cite magazine |last1= Hirsch |first1= Julian|author-link1=Julian Hirsch |date= May 1979 |title=Eumig 'CCD' Cassette Deck |url=http://www.americanradiohistory.com/Archive-Poptronics/70s/1979/Poptronics-1979-05.pdf  |magazine=[[Popular Electronics]] |access-date=18 December 2017 |quote=The transport controls are fully logic operated through solenoids. Any transport control button can be touched while the machine is running in any mode without risking damage to tape or deck. Even the button for the cassette compartment door can be operated while the tape is running. |pages=39–44}}</ref> Some examples of fail-safe mechanisms incorporated into logic control decks include: a mechanism designed to protect internal components from damage when the tape or motor is locked, a mechanism designed to prevent the tape from being wound improperly, among others.<ref>{{cite journal |last1= Takahata |first1= Masato |last2= Michinaka |first2= Takashi |last3= Goto |first3= Tsutomu |last4= Igawa |first4= Yoshihisa |last5= Arai |first5= Kenboku |last6= Takata |first6= Masanao |display-authors=1|date= 1991|title= Logic Controlled Cassette Deck Mechanism "DK-76" |url= https://www.denso-ten.com/business/technicaljournal/pdf/4-5E.pdf|journal= Fujitsu Ten Technical Journal |issue= 4|pages= 52–60|access-date= 2017-12-12}}</ref> Some logic control decks were designed to incorporate light-touch buttons or [[remote control]], among other features marketed as being convenient.<ref>{{cite magazine |last1= Hirsch |first1=Julian |author-link1=Julian Hirsch |date= May 1979 |title=Aiwa Model AD-6900 cassette deck |url=http://www.americanradiohistory.com/Archive-Poptronics/70s/1979/Poptronics-1979-09.pdf  |magazine=[[Popular Electronics]] |access-date=18 Dec 2017 |quote=There was a slight "clunk" from the solenoids as they operated, but the buttons themselves required almost no activating pressure, and the control logic appeared to be as foolproof as claimed. |pages=28–31}}</ref><ref>{{cite web |url=http://www.ant-audio.co.uk/Tape_Recording/JVC/JVC_Cassette_Decks__1982_LR.pdf |title= JVC Stereo Cassette Decks |date=1982 |publisher=Victor Company of Japan |access-date= 2017-12-13|quote= "The following conveniences are available: *Direct change of mode... *Light-touch button... *Punch-in recording... *Remote control..."}}</ref> In the [[car stereo]] industry, full logic control was developed with the aim of [[miniaturization]], so that the cassette deck would take up less dashboard space.<ref>{{cite journal |last1= Takai |first1= Kazuki |date= 1985-02-01|title= Ultra-Compact, Full-Logic Cassette Mechanism|url= http://papers.sae.org/850024/|journal= SAE Technical Paper 850024|series= SAE Technical Paper Series |volume= 1 |pages= 20|doi= 10.4271/850024|access-date= 2017-12-13}}</ref>