Sharp Kabushiki Kaisha Corporation

Nippon Telegraph and Telephone Corporation

Nippon Telegraph

Telephone Corporation & Sharp Kabushiki Kaisha

Motohiko Hayashi

Matahira Kotani

Masayuki Hachinoda

Naomitsu Murata

Katsuyuki Sakai

Mitsunobu Kondo

Masafumi Matsumoto

Hiromu Sasaki

Masafumi Yamanoue

Kouichi Mino

Toshiaki Karita

Hiroya Inagaki

Mamoru Fujii

Ryoichi Kawai

Kenichi Shiraishi

Sadaaki Shimonaga

Shigeru Kida

Junichiro Matsumoto

Hiroshi Mori

Masanori Morigami

Takashi Nakajiri

Toshihiro Matsuda

Nobuhiro Tamura

Masahiro Tanaka

Yoshikatsu Ooi

Shigeari Yasuda

Mitsuo Tsuda

Yuzoh Oi

A communication apparatus performs a maintenance operation in a short period of time, without using a communication apparatus which includes a special communication protocol on a maintenance side. In a facsimile machine 24, upon receipt of a DTMF signal on a communication line 1, the DTMF signal is supplied to a modem 8 through a relay 3 and a transformer T1. This is done such that the modem 8 converts the received DTMF signal into a code signal such as 1 to 0, * and # and supplies the code signal to a CPU 16 through a data bus, formed by a gate array 11 and a main gate array 23. The CPU 16 stores the code in a temporary storage RAM 19, digit by digit. In the meantime, when it is determined that the code signal is '96#,' from a RAM 17, the CPU 16 reads a functional parameter associated with the number of a soft switch which is temporarily stored in the RAM 19. Among data regarding the soft switch, the CPU 16 changes data which are associated with a data number which is temporarily stored in the RAM 19 into a changed value which is also temporarily stored in the RAM 19 and writes the changed value in the RAM 17 again.

Communication apparatus

To present a facsimile apparatus capable of preventing occurrence of unsuccessful transmission and enhancing the certainty of information transmission, the manipulating procedure in the manual reception mode for receiving a facsimile signal after an incoming telephone call is provided to the telephone user. When the manual receiving mode is set in the facsimile apparatus, after receipt of the incoming call by lifting the handset of the external telephone set in response to ringing of the calling side terminal device, a CNG signal is transmitted if the calling side is a facsimile apparatus set in an automatic transmitting mode. When this CNG signal is received, the voice signal for instructing the operating procedure for receiving the facsimile signal is delivered to the external telephone set. The operating procedure for receiving the facsimile signal is delivered through the handset, so that the facsimile signal may be easily received by a user not knowledgeable or familiar with the manipulation of the facsimile apparatus.

Facsimile apparatus

A communications system connected to a telephone network includes a facsimile machine and a telephone set. The telephone set includes a telephone for conducting voice communications over the telephone network and a telephone answering machine for automatically responding to calls received by the telephone set over the telephone network. One or more operational parameters of the answering machine are set to define how it automatically responds to calls. A switch connects either the facsimile machine or the telephone set to a telephone network. One or more operational parameters of the answering machine is initially detected and stored. A controller controls the switch to connect either the facsimile machine or the telephone set to a telephone network based on a comparison of the stored parameter(s) and subsequently detected operational parameter(s) detected when the answering machine responds to a call.

A facsimile apparatus and a telephone set are connected to one telephone line in parallel with each other. A voltage variation .DELTA.V caused by closing and opening of a DC circuit of the telephone set is detected via an off-hook detector of the facsimile apparatus to establish the operation mode of the telephone set. The detected operation mode of the telephone set is stored in a RAM. The detected mode of the telephone set, and thus the closing and opening of the DC circuit of the telephone set, is displayed and/or printed.

Line in-use indicator for a telephone set and facsimile machine

A facsimile apparatus incorporating a cordless telephone function includes a base unit for receiving and transmitting a signal to and from a remote unit via a radio signal, and a facsimile communication device. A reception signal detecting device within a NCU first makes the determination whether the reception signal transmitted through the telephone line includes a CNG signal representing facsimile communication. When determination is made that the reception signal includes a CNG signal, the telephone line is connected to the facsimile apparatus. When determination is made that a CNG signal is not included, the telephone line is connected to the base unit. According to the type of reception signal from the telephone line, the telephone line is connected to the facsimile apparatus or the cordless telephone set.

Facsimile apparatus comprising cordless telephone set

A facsimile apparatus is provided which can enhance the operability and usefulness of portable image reading devices when transmitting documents and which allows effective utilization of the image reading device. The facsimile apparatus includes a main unit and a separable handscanner between which image signals and various control signals are transmitted using an optical communication technique. A document is scanned by a handscanner that generates signals representing the document image. The image signals are temporarily stored in an image memory and transmitted to the main unit when necessary. Depending on the hook state of the telephone, the main unit either transmits the received image signals to a remote station or records the image on recording paper. When the main unit receives image signals over a telephone network, the received image signals are transmitted to the handscanner for storage into the image memory when necessary. This is done for example, when the so-called memory reception mode is set or when a recording section in the main unit is in a non-normal state.

A facsimile apparatus incorporating a cordless telephone set includes a base unit transmitting and receiving a signal to and from a remote unit with a radio signal, and a facsimile communication device. During voice communication with the remote unit via a telephone line, an alarm is issued to the user when the voice communication continues for more than a predetermined time period. An alarm is also given to the user of internal line voice communication when there is a telephone call from an external line during voice communication between the base unit and the remote unit. Therefore, the reception of a reception signal to the facsimile apparatus is not inhibited because an alarm is issued when voice communication continues for more than a predetermined time period and when there is a telephone call from an external line during internal line voice communication.

Facsimile apparatus and alarm system with cordless telephone set

Disclosed a facsimile apparatus that combines copying with transmission. An external telephone is connected to it to be remotely controlled by a remote signal including at least one DTMF signal from the external telephone. And, there is provided means for comparing the tone duration of the tone-pair signal having DTMF frequencies sent by the external telephone with a predetermined detection time, and deciding whether or not said tone-pair signal is a valid DTMF signal used for remote signals based on the compared result. Further, there is provided means for estimating the tone duration of DTMF signals that is specific to the external telephone, and setting the optimum detection time.

Facsimile apparatus controlled by DTMF signals

A facsimile system includes: a telephone apparatus; a facsimile receiving device for detecting a CNG (Calling Tone) signal, which follows a call request signal from a telephone exchange, on a telephone line, and receiving a facsimile data through the telephone line if the CNG signal is detected; a switching device for selectively connecting the telephone line to either the facsimile receiving device or the telephone apparatus; a device for controlling the switching device such that the switching device connects the telephone line to the telephone apparatus if the CNG signal is not detected by the facsimile receiving device while the telephone line is connected to the facsimile receiving device; and a device for generating a control signal if the CNG signal is not detected by the facsimile receiving device. The facsimile system also includes a pseudo-call requesting device connected to the generating device and the telephone apparatus for outputting a pseudo-call request signal, which is substantially same as the call request signal from the telephone exchange, to the telephone apparatus to make the telephone apparatus ringing when the control signal is inputted from the generating device.

Facsimile system

A facsimile apparatus having a housing (10) for the apparatus and a telephone placing portion (12) disposed at an upper part of the housing, on which a telephone (11) connected to a public telephone network can be placed. The facsimile apparatus further including elements (18) for scanning an original by feeding the original to generate electrical signals representing image information of the original and elements (19) for recording image information applied to the apparatus through the public telephone network on a sheet. Both the scanning elements and the recording elements are disposed side by side along the direction of feeding of the original. The telephone placing portion is disposed above both the scanning elements and the recording elements to cover the upper portion of both the scanning elements and the recording elements. The apparatus further includes a first passage (32) disposed between the telephone placing portion and the scanning elements for feeding the original and second passage (33) disposed between the telephone placing portion and the recording elements, for feeding the original passed through the first passage. Both the first passage and the second passage can be opened to the outside by opening the placing portion.

The paper feeding device comprises a drive source having a shaft rotatable in forward or reverse direction and a drive gear mounted fixedly to the shaft, a sun gear engaging with the drive gear and being rotatable around a supporting point, first and second planetary arms mounted rotatably to the supporting point of the sun gear, respectively, first and second planetary gears engaging with the sun gear and attached rotatably to the first and second planetary arms, respectively, and arm lock mechanism for positioning and fixing the first and second planetary arms, respectively. The rotation of the shaft of the drive source is transmitted through the first planetary gear to an original feeding roller in the transmission mode and to a platen roller in the reception mode. The driving force is transmitted to the original feeding roller via the second planetary gear and to the platen roller via the first planetary gear in the copy mode.

Paper feeding device for facsimile apparatus

The present disclosed invention includes a telephone set provided with a facsimile function. The telephone set includes an image reader which can be mounted on and detached from its body. The reader can be detached and operated to scan an original with an image to be transmitted thereon. A read-out image data signal is modulated in frequency and then transmitted toward a receiving portion in the body through a transmitting portion in the reader. The received image data are transmitted to another desired facsimile terminal equipment through a telephone line. Since there is no need for an electric wire to be connected between the body and the reader, a more flexible reading of an image can be achieved.

Data transmitter-receiver apparatus for transmitting and receiving image

When a number of exothermic elements arranged linearly are used for printing, driving data are inputted to the gate circuits of each exothermic element, and the gate circuits are controlled by the strobe signals in the conducting/nonconducting state. The circuit gates are divided into groups and the strobe signals different for each group are inputted in sequence. At printing, when there is the group having a relatively small number or no exothermic elements being heated and driven, and the strobe signal is given to each group successively for any groups, the necessary driving time may be wasted. The operating speed many be improved if a plurality of strobe signals are outputted in parallel when the number of exothermic elements being heated and driven is relatively small, and if the corresponding strobe signals are stopped when there is no exothermic element, and outputting the next strobe signals immediately in both cases.

High speed printer

Disclosed is an image data transmission apparatus which includes an image reading unit for reading the original image, and a transmission apparatus main body. The main body includes a memory for storing the image data read by the image reading unit and transmits the content of the memory. The image reading unit is detachably mounted on the transmission apparatus main body. The transmission apparatus main body is further provided with a conveying device for conveying the original in a state in which the image reading unit is mounted on the transmission apparatus main body to thereby read the original. The image reading unit may also scan the original to read an original image, in a state in which the image reading unit is dismounted from the transmission apparatus main body. Further, a sheet element made of a material of a low coefficient of friction, as opposed to the original, may be disposed at a position corresponding to the mounted state of the image reading unit on the transmission apparatus main body. Further, an image data transmission apparatus is disclosed which possesses the telephone function and copy function, and is also provided with, as desired, a facsimile function by mounting a detachable facsimile processing device in the transmission apparatus main body. Further, the operation panel may be, in order to use it as the original stacker, disposed angularly dislocatably around the axial line crossing with the original inserting direction.

Image data transmission apparatus

A facsimile apparatus has a single conveying roller in it, above which an image sensor is set and below which a printing head is set. Pressing pins are set respectively near the upper and lower ends of components supporting the conveying roller to freely rotate. In transmission, the lower pressing pins keep away the printing head from the conveying roller and the image sensor presses an original document onto the conveying roller. In reception, the upper pressing pins keep away the image sensor from the conveying roller and the printing head presses the recording paper onto the conveying roller. In this way, structure of the facsimile apparatus is simplified.

Growing community of inventors

Yamatokoriyama, Japan

Motohiko Hayashi