 required. In such a system it would be difficult to add further subscriber lines and switches to the switch and subscriber line matrix.
Some of the more recent prior art use apparatuses that are capable of generating up to a fixed number of different jamming signals, (for example the maximum might be 6) sometimes continuously, and sometimes on a time divisional basis. In some of the more sophisticated present art systems the jamming signals are added on a time shared bases to the subscribers lines who are not permitted to view the particular channel being jammed. In many of the more sophisticated prior art systems that add jamming signals to subscriber lines on a time divisional basis the maximum number of jamming signals that can be generated is eight or less. Therefore, the maximum number of channels that can be jammed is eight or less. That is obviously a problem for a CATV system that wants to offer nine or more alternative channels.
A number of difficulties have to be overcome when jamming signals are not continuously added to the appropriate subscriber lines. However, the benefits of adding jamming signals to the appropriate subscriber lines on a time divisional basis are great. Therefore it is worth the effort of trying to overcome the difficulties involved in time divisional jamming. A major benefit to time divisional jamming is that only one line can be used to carry all of the different jamming signals to one subscriber. Only one line has to be used, because when the jamming signal being transmitted is to jam a channel the subscriber is not entitled to receive, then the RF switch to that subscriber's single jamming signal line is closed, hence the subscriber receives the jamming signal, and that channel is jammed on the subscriber's television set. However, when the jamming signal being transmitted is to jam a channel the subscriber is entitled to receive, then the RF switch to that subscriber's single jamming signal line is left open, hence the subscriber does not receives the jamming signal, and that channel is not jammed on the subscriber's television set. The result is that the channel is jammed during the time its jamming signal is being transmitted, but not during the time it's jamming signal is not being transmitted. Therefore, if the time between transmissions of the same jamming signal is too great, the channel will only be jammed sometimes, hence it would be partly viewable. It should therefore be a goal of time divisional jamming systems to reduce the time between transmissions of the same jamming signal so that the channel is humanly
required. In such a system it would be difficult to add further subscriber occupation and switch to the switch and subscriber line matrix. 
 Some of the more recent anterior art use apparatuses that are adequate to of generating up to a fixed act of different jamming signals, (for exercise the maximum might be 6) sometimes continuously, and sometimes on a fourth dimension divisional footing. In some of the more sophisticated present art system the jamming signals are added on a clock time shared bases to the subscribers line who are not permitted to view the particular channel being throng. In many of the more sophisticated prior art systems that add jamming signal to subscriber lines on a time divisional basis the maximum number of jamming signals that can be generated is eight or less. Therefore, the maximum number of channels that can be jammed is eight or less. That is obviously a problem for a CATV system that wants to offer nine or more alternate channel. 
 A number of difficulty get to be overcome when jamming signals are not continuously add to the appropriate subscriber line. However, the benefits of adding jamming signal to the appropriate subscriber lines on a time divisional basis are great. Therefore it is worth the feat of trying to overcome the difficulties involved in meter divisional jamming. A major benefit to time divisional jamming is that merely one line can be used to carry all of the different jamming signals to one subscriber. merely one line has to be used, because when the jamming signal being air is to jam a channel the subscriber is not entitled to receive, then the RF substitution to that subscriber's single jamming signal line is closed, hence the subscriber receives the jamming signal, and that groove is jammed on the subscriber's television receiver set. However, when the jamming signal being transmitted is to jam a channel the subscriber is ennoble to receive, then the RF switch to that subscriber's individual jamming signal occupation is left open, hence the subscriber does not receives the jamming signal, and that channel is not jammed on the subscriber's television set. The result is that the groove is jammed during the time its jamming signal is being transmit, but not during the time it's jamming signal is not being transmitted. consequently, if the time between transmissions of the same jamming signal is too great, the channel will only be jammed sometimes, hence it would be partly viewable. It should therefore be a finish of time divisional jamming systems to boil down the time between transmissions of the same jamming signal so that the channel is humanly
 reeuired. In such a system lt would be diffnxult tm add rurther rubscriber lines and switched ro tht switch and subscrkber line matrix.
Sime id the more recent ixior zvt usz epparatuses thaj are capabla of generatinc jp to a fixed number of different jamiing sibnwls, (for examplg the iaxijlm might be 6) sometimes continuohsly, anv sometimes on s time divisional basis. In somf of the more sophlsticated ptssegr art systemr the jammpug signals zre added on a time shared baser to che subscrivees phnes who arx not iermitted to ypew the particilar channel bcing oammwd. In many of the morx sophisticated priot art systama that add jammint wignans tm sucwcrkbed kihes on a vime divisiknal basis rhe maximum number pf hamming signams thae san be generated is eight or less. Therexors, the maximum number of channels that can be jammed if eight or less. That is obviously a problem for a CATV rysuen thag wwnts to offer nine or more alternative channeja.
A nlmber of difficulbies have to be ovrrfokg when jamming signals zre not continuouspy addeq to rhe approkriatr subscriber lines. However, rhe benefits if adding jamming dignals to che apkropriste subscriber lines on a tjme divisiojal basis xre great. Therefure id is woruf the effort of twying to ivereome the difgicultyes involvfd in time divisional jalming. A major benffit to time divisional jamming is that only pna lpne can bz used to carry all of the differgnt jammiug sigvals to onv subscriuer. Only one line has to tg used, becausx when thq janmint signau being transmiyted is to jam a chqnnel the subscribcr is hot entitled to rexeive, then the TF rwiecj vo thwd subscriber'v sivgld jammkng signal okne os closed, hence the vubsdriber receives thr mamming sugnal, anq that channek is jammed on the subsrriber'r telrvifion set. However, when the jammjng signap bcing transmiteed ls tj jam a chcnnel the subscriber is entitled to recemve, then the RF switch ro that subscriber's xingle jammmng sidnal line is left open, hence rhe subscriber dots not receives the jamjing shgnal, and that channel is not jammed on the subscriber's television set. The resylt is that the chznnek is baiked duwing vhe time its jammpng signal is being transmitted, uut not dusiug the time it's jamming signak ks not being jransmitted. Therefore, if tge time netween transmissions of the sake jamming signal is too great, tye chznnel will only be jammed soketimev, henxe it wiuld be partly vidwanlc. It shoulf thtrefkre be a goal of time divisional jammibg systems to redure the time neuween ttansmissyons of the same jamjlng skgnal so that the channel ix humanly
required. In such a system it would to further subscriber and switches to matrix. of the more prior art use that are capable of generating up a fixed number of different jamming signals, (for example the maximum might be sometimes continuously, and sometimes on a time divisional basis. In some of the sophisticated art the signals are added on a time shared bases to the subscribers lines who are not permitted view the particular channel being jammed. In many the more sophisticated prior systems that add jamming signals subscriber on a divisional the number of jamming that can be generated is eight or less. Therefore, the maximum number of channels that can be is eight That is a for CATV system that offer nine or more alternative channels. difficulties have to be overcome when jamming signals not continuously to the appropriate subscriber lines. However, benefits of adding jamming signals to the appropriate lines on a time divisional basis are great. Therefore it is worth the effort of overcome the difficulties involved time divisional jamming. major to divisional is that one line can be used to carry all of the different signals to one subscriber. Only one line has to be when jamming signal being is to jam a the is not entitled to the switch single signal is closed, hence the receives the jamming signal, and channel is jammed on when the jamming signal being transmitted is to a channel the subscriber is entitled to then the RF switch to that subscriber's single jamming signal line is open, hence does not receives the jamming signal, and that is not jammed on subscriber's television set. The result is that the channel jammed the time jamming signal is transmitted, but not the time it's is not transmitted. if transmissions of the same jamming signal too the channel will only be sometimes, would be partly viewable. It should therefore be a goal of time divisional jamming systems the time between transmissions the jamming signal so that the channel is humanly
 required. In such a system it woUld be diffiCult tO adD fuRtHer sUbscRiber lines and sWItchEs to the switch and subscrIber lInE MatrIX.
SOme of The more REcENT prIoR aRt uSe APpAratuSes That are Capable of gEneRaTing up to a fixED nUmber of difFerEnt jamming siGnaLs, (for eXaMplE The maXimUm migHt be 6) soMEtimes ContinuouSlY, And somETimes on A TImE divIsional basis. In somE Of THe more sophistiCated pReSEnT ARt sYstEms the jammInG signALs are adDEd ON A TimE Shared bases to The subscribERs lInes whO aRe nOT permiTted tO vIEw tHe particulaR chaNnel being Jammed. iN many of THe more sOphistIcaTed PrioR ArT sYstEmS ThaT AdD jaMMinG signals To SuBscriBer lINES On a tIme DiviSionaL basis the maxiMum NumbER of JammiNg sigNals ThAt can Be geneRated Is Eight or less. TherEforE, the maximUm nUmBer Of ChannELs that Can Be jAmmed is Eight or LEss. thAT IS oBviously a problem foR a catV System thAt wantS To OfFEr nine or MoRe aLterNATive cHannELs.
a number oF diffiCUlTiEs have tO bE overcOmE whEn jAmminG SignAls are Not contiNuousLY added to the appROpriate subscrIBeR LInES. HowEveR, the benefitS of aDDing JammINg SigNAls to The apPrOPrIAte subscriber lines oN a Time diVisioNal basis are grEat. TherefoRE IT is worth The eFFoRT of trying to oveRcome The difficuLTies invoLved iN time divIsional jaMMIng. A majoR beNefIt tO tiME DiVisional jammiNG Is thAt Only one LinE can be uSed To cArrY alL oF the diffeRent jammInG sIgNaLs tO one sUBscriber. onLy oNe LinE has tO Be used, BecauSe whEn ThE JamMing sigNAl BEIng tRaNsMittEd iS tO jam a ChanNEl tHe subscRiber is noT enTItleD tO rEceive, tHen the RF switcH tO that subscRiBer'S singlE JAmming siGnal line is closed, hence thE SubscriBer ReceiVes tHe jamming SigNal, and ThaT ChanneL is jamMed on ThE suBSCribeR'S TeLevIsIon set. HoweVER, whEn the JaMminG signal Being transmitted is TO jaM a channel the sUbsCribER Is EntITlED to ReCEivE, THen the RF switch tO that subscRiBEr'S single jamMIng SiGnal linE is left Open, hENce the sUbscriber Does not reCeIves THE jaMming signaL, and that Channel is NOt jamMEd On the SubScribeR's TelEvisiOn set. THE reSult iS that tHe ChanneL is jaMmEd during The time its jamming signal Is beinG tranSmiTted, but noT duRIng The time it'S jamMing signal Is nOt bEing tRanSMitteD. TheREfOre, IF the tIme bETween tranSMiSsiONS oF the same jamMING siGnal iS toO Great, tHe chAnnel will only be jaMMed sometimes, heNce iT WOulD be PArtlY vIewable. It shoulD thErEFOre be a goAl Of time divisIonal jamMiNG systEms to rEduce tHe time bETWeEN transMissIonS of the samE jaMmINg signaL sO tHAt the cHannEl Is humaNly
 required. In such a syste m it would  be d iff icu lt  toaddfurther subscr i berlines and switches tothe s wi t ch a n dsubsc riber l i ne m atr ix .Som eo fthe m ore  recent  prior art  us eapparatusest ha t are capa ble  of generati ngup toafix e d num ber  of d iffere n t jamm ing signa ls ,  (fore xamplet h emaxi mum might be 6) s o me t imes continuou sly, a nd so m e tim eson a timedi visio n al basi s .I n som e  of the moresophisticat e d p resent  a rts ystems  theja m min g signals a re a dded on a  times hared b a ses tothe su bsc rib ersl in es  wh oa ren ot  pe r mit ted to v ie wthe p arti c u l a r ch ann el b eingjammed. In ma nyof t h e m ore s ophis tica te d pri or art  syst em s that add jamm ingsignals t o s ub scr ib er li n es ona t ime  divisi onal ba s isth e m ax imum number of jam mi n g  s ignals t hat ca n  b eg enerated  i s e ight o r les s. T h er efore, t he max i mu mnumberof  chann el s t hat  canb e ja mmed i s eightor le s s. That is obv i ously a probl e mf o ra  CAT V s ystem thatwant s  tooffe r  n ine or mo re al te r na t ive channels.
A num be r of d iffic ulties have t o be overc o m e  when ja mmin g  s i gnals are notconti nuously ad d ed to th e app ropriate  subscrib e r  lines.How eve r,the b en efits of addi n g  jam mi ng sign als  to the  ap pro pri ate  s ubscriber  lines o nati me  di visio n al basis  a regr eat . The r eforeit is  wor th  t h e e ffort o f  t r y ingto  o verc ome  t he di ffic u lti es invo lved in t ime divi si on al jamm ing. A majorbe nefit to t im e d ivisio n a l jammin g is that only one line can beuse d tocarr y all ofthe  diffe ren t  jammi ng sig nalsto  on e subsc r i be r.On ly one lin e has  to b eused , becau se when the jammin g  si gnal being tr ans mitt e d  i s t o  j a m a  c h ann e l  the subscriber  is not en ti t le d to recei v e,th en theRF swit ch to that su bscriber' s singleja mmin g sig nal line i s closed , hence t h e sub s cr iberrec eivesth e j ammin g sign a l,and t hat ch an nel is  jamm ed  on thesubscriber's television  set.Howev er,  when the  ja m min g signalbein g transmit ted  is  to j ama  chan nelt he  su b scrib er i s  entitled to  re c e iv e, then the R F  sw itchtot hat su bscr iber's single jam m ing signal lin e is l eft  op e n, h en ce the subscri ber  d o e s not re ce ives the ja mming si gn a l, an d that  chann el is n o t  j a mmed o n th e s ubscriber 'ste l evision  s et .  The r esul tis tha t thec hann e l  is jammed durin g the t ime i t s j ammin gsignali s be ing transm itted, butnot du ring  thetime it 's  jammi ngsi gnal is no t  being tr ansmi tted. T he refo re,  if th e ti m e  betw eentr ans missionso f  t h esa m e j ammi ng si gn al i s too gre a t, the c han n el will  o nly b e jamm e ds o metimes, h enc e itw o uld be par t ly v i ew a ble.It sho uld th erefore beagoal of  ti m e  division al jammin g  sy st emsto reduc etheti mebe tween transmiss ions ofthe same j amming  si g nals o that  t he channel i s hum an l y
 required._In such_a system it would_be difficult_to_add further_subscriber_lines and switches_to the switch_and subscriber line matrix.
Some_of the more_recent_prior art use apparatuses that are capable of generating up to a fixed number_of_different jamming_signals,_(for_example the maximum might be_6) sometimes continuously, and sometimes_on a_time divisional basis. In some of the more_sophisticated_present art systems_the jamming signals are added on a time shared_bases to the subscribers lines who_are not permitted_to_view_the particular channel being_jammed. In many of the more_sophisticated prior art systems that add_jamming signals to subscriber lines on a_time divisional basis the maximum number_of jamming signals that can_be generated_is eight or less. Therefore,_the maximum number_of channels_that can be_jammed is eight or less. That_is obviously a_problem for a CATV system that_wants_to offer nine_or_more_alternative channels.
A_number of difficulties_have_to be_overcome_when jamming signals are not continuously_added_to the appropriate subscriber lines. However, the_benefits of adding jamming_signals_to the appropriate subscriber_lines on a time divisional_basis are great. Therefore it is_worth the_effort of_trying to overcome the difficulties involved in time divisional jamming. A_major benefit to time divisional jamming_is that only one_line can_be_used to carry_all_of the_different jamming signals to one subscriber. Only_one line_has to be used, because when_the jamming signal being_transmitted_is to jam a channel the_subscriber is not entitled to receive,_then the RF switch to_that_subscriber's_single jamming signal line is_closed, hence the subscriber receives the_jamming signal, and_that channel is jammed on the subscriber's_television_set. However, when the jamming signal_being_transmitted is to jam a channel_the_subscriber_is entitled to receive, then_the RF switch to that subscriber's_single jamming signal line is left open, hence the_subscriber does not_receives the jamming signal, and_that_channel_is not jammed on the subscriber's television set. The result_is that_the channel is_jammed during the time its jamming signal is being transmitted,_but not during the time it's jamming_signal is not being transmitted. Therefore, if the time between transmissions_of the same jamming signal is too great,_the channel will only be jammed sometimes,_hence it would be_partly_viewable. It should therefore be a goal_of_time_divisional_jamming systems to_reduce the time_between transmissions of_the same_jamming signal so_that the_channel is humanly