Abstract:
In the event of an earthquake or fire, important objects like a recording medium used in a location where important information to the outside are relayed or in a location where natural phenomena are observed, are carried away, hanging from an airborne balloon that is inflated and released in response to the mechanical shock of an earthquake or the heat of a fire.
Abstract:
A hexagonal magnetoplumbite-type barium ferrite magnetic powder represented by the following formulaBaO.n(Fe.sub.12-x-y-z M.sub.x.sup.1 M.sub.Y.sup.2 Zn.sub.z O.sub.18-.alpha.)wherein M.sup.1 represents at least one metal element selected from Co, Ni, Cu, Mg, and Mn; M.sup.2 represents at least one metal element selected from Zr, Ti, and Ge; n is a number of from 0.8 to 1.0; x is a number of from 0.1 to 2.5; y is a number of from 0.1 to 1.5; x is a number of from 0.1 to 1.5; and .alpha. is 1/2(3-m)(x+y+z) in which m is a number of less than 3 and represents an average atomic valence of M.sup.1, M.sup.2 and Zn. The said hexagonal magnetoplumbite-type barium ferrite is useful for a magnetic recording medium.
Abstract:
An easily operable recording/reproducing apparatus of double cassette type having a master tape and a slave tape is disclosed, which is adapted to operate each of these tapes in a plurality of modes including recording, playing back, rewinding, and fast-forwarding modes. The recording/reproducing apparatus comprises a first operation button for operation of the master tape, a second operation button for operation of the slave tape, and a third operation button for dubbing operation from the master tape to the slave tape. A microprocessor is adapted to detect depressed buttons and a number of times of depression of each button, and controls so that each of the master tape and the slave tape is operated in operation mode in accordance with the detected result. When the third operation button is depressed, dubbing operation from the master tape to the slave tape is performed. When the second and third buttons are depressed simultaneously, recording on the slave tape is performed.
Abstract:
A switching apparatus is proposed which automatically switches between a telephone set connected to a telephone line and a terminal device for data communication in accordance with a signal sent through the telephone line. When an incoming call signal is detected, the telephone lines are engaged with the telephone set, and a response signal is sent out onto the telephone line. Thereafter, when a control signal or the like is received by the switching apparatus, the terminal device is automatically engaged with the telephone line. When the control signal is not sent to the switching apparatus, the called party can communicate with the calling party when the telephone set is set in the off-hook state.
Abstract:
Letters and a space are assigned to numeric keys of a pushphone. A desired numeral, letter or space is transmitted by depressing a corresponding numeric key a predetermined number of times, and thereafter a specific symbol key is depressed. At a reception side, a transmitted letter is detected in accordance with the corresponding numeric key code and the data representing the number of times of depression of the corresponding numeric key. An alphanumeric character string is thus displayed.
Abstract:
An automatic telephone answering apparatus is arranged such that an outgoing message stored in an IC memory is read out and converted to an audio analog signal which is then sent out onto telephone lines, and thereafter an incoming message sent from a calling party is converted to a digital signal which is then stored in one of a plurality of other IC memories.
Abstract:
In an automatic telephone answering apparatus, a ringing tone generated upon reception of an incoming call is detected by a ringing tone detecting means, a pulse or leakage flux generated upon reception of the incoming call is detected by a pulse detecting means, and a telephone line is engaged when the ringing tone detecting means and said pulse detecting means simultaneously generate detection signals, thereby operating the automatic telephone answering apparatus.
Abstract:
A telephone answering apparatus responds to an incoming call by reproducing a message greeting the caller and requesting the caller's name. The response by the caller is amplified in the region of a called parties telephone set to be heard by the called party. If the called party is able to receive the call immediately, an acknowledgment signal is transmitted via a wireless transceiver carried by him back to the answering machine so that a message such as "Please wait a moment." is reproduced. A third message advising the called party is not available but will return the call is generated automatically after a predetermined time duration if the acknowledgment signal is not transmitted by the called party via the transceiver or the called party has not answered the telephone.
Abstract:
A crystalline aluminosilicate having the following empirical formula:xM.sub.2 O.yM'O.Al.sub.2 O.sub.3.zSiO.sub.2.nH.sub.2 Owherein M is an exchangeable cation selected from the group consisting of alkali metals, hydrogen and mixtures thereof, M' is an alkaline earth metal, x is between 0 and 1.5, y is between 0.2 and 40, z is between 12 and 3000 and n is between 0 and 40 and wherein x+y is 1.2 or more, said aluminosilicate having the X-ray diffraction lines of Table 1 of the specification. The crystalline aluminosilicate material is obtained by providing a reaction mixture containing water, a tetrapropylammonium compound and a source of an alkali metal oxide, an oxide of silicon, an oxide of aluminum and an oxide of an alkaline earth metal and having a composition falling within the following ranges:SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio: 12-3000OH.sup.- /SiO.sub.2 molar ratio: 0.02-10H.sub.2 O/SiO.sub.2 molar ratio: 1-1000tetrapropylammonium ion/SiO.sub.2 molar ratio: 0.02-2alkaline earth metal/Al atomic ratio: 0.03-300, andmaintaining the mixture at a temperature and for a period of time sufficient to form crystals of the aluminosilicate. The aluminosilicate is useful as catalyst for converting methanol and/or dimethyl ether into lower olefins.
Abstract:
A calling party's telephone number displaying device in which, while the telephone set of a subscriber is ringing in response to calling signals from a telephone exchange office, the telephone number of a calling party and information are displayed on digital display units at high speed before lifting the handset. Accordingly, the subscriber can determine whether or not he should answer the call before picking up the handset. Thus, his privacy can be protected from a variety of telephone troubles such as wrong number and nuisance calls. The display is maintained as it is even if the handset is put back after the talk but it will be cleared automatically upon reception of the next call to display the telephone number of the next calling party. When the subscriber picks up the handset to make a call, the internal circuit is automatically changed to display a telephone number dialed by him.